For times when you want to do nothing but watch youtube, learn to knit or crochet so you can feel a little better about doing something.

Therapy is the best hobby.

Firstly know you are not alone, lots of people feel like this. I suggest a hobby which includes exercise and meeting people. Exercise releases endorphins and generally energises you. Meeting people helps bring you out of yourself and focus on something else. I do gym classes as it means I am around people but don’t have to interact too much. It’s the same people so I say hi and maybe chit chat a little. A gym buddy is good if you can find one, we never liked to bail on each other so used to go quite regularly. Swimming always makes me happy and my cat! (She likes to paddle but not really what I meant!)

Working out

I picked up plants when I got depressed. Not only are they cool, but it is nice seeing something grow and nurtured. Plus, I learned that there isn't enough sunlight in my home which contributed to my depression.

The only thing I recommend is not to get a hard starter plant like calathea/goeppertia but like a spider plant. Really cool seeing them explode with growth!

Making music is a great outlet for any kind of emotion. But it's a long journey so you should manage your expectations. You won't be writing the most sophisticated songs at first, but as long as it's from your heart, it's good nonetheless.

I can't relate to your depression, though, so I don't know if this would be too overwhelming. If you manage to stick with it, the sense of fulfillment is amazing though.

Uninstall/disable the YouTube app. Trust me you will be a happier person

Ultimate Frisbee

If you're looking for something you can do while watching YouTube, origami. It lets you ease into a hobby, without completely taking away your vice.

Here's some i made yesterday while watching schadenfreude vids about the Netflix Cowboy Bebop disaster...

Knitting. The basics are really easy to pick up and you get something out of it surprisingly fast. As an added bonus knitting supplies can be gotten for around $10 at walmart all in

Reading books. I enjoy it so much because it distracts me from depression, but depending on the book, it also can be enlightening in some ways and doesn‘t require me to really do much or go anywhere.

Kernel mainlining

@QuietStorm
Group activities. People who are depressed should endeavor to be around people even if it is not what they want. Loneliness in a depressed person will turn to self loathing. Playing card games and board games with friends is a great activity because it forces you to be socially active and think about something other than what is depressing you.

How do you feel about finding things difficult and failure? Because that's really important to consider when thinking of suggestions. It also depends how dedicated or how hard you are on yourself.

Try martial arts.

Exercise gives you endorphins. Endorphins make you happy.

I say martial arts because it sounds like you're having trouble being self-directed and finding motivation. I also have trouble being self-directed. I don't go to the gym because I get there and I'm overwhelmed by the options and don't know how to use the machines and get really self-conscious about everything. I don't like outside sports because I live where it's hot. Martial arts classes are set up to teach you in structured lessons, with instructors to plan what you're gonna do and keep you motivated.

Plus, you get to hit stuff.

Go swimming in the sea

For me its gardening. If you don't have a an outdoor space, get yourself a couple of pots and plant some veggies and place them by the window.

Dancing. There were dark times in my life where the dance practice was the highlight of the week. You get to know people too and when you choose a style of music you like it's almost impossible to feel bad. I know of people I met there who need it as well to stay positive.

Also it's physical and mental exercise in one. Perfect.

Whenever I feel this way, which is often, I tinker with my homelab or play music. Oftentimes I don't feel to motivation to, but I know once I start I'll get sucked right in.

Meditation.

It's been shown to be a very effective remedy for depression. It's also a useful tool for getting in control of your mind. If you meditate regularly, you'll find more enjoyment in the things you're already doing.

Also, since it's just you and your thoughts, you may discover something you're interested in and find a hobby that way.

My hobbies change with the seasons. Woodworking, tinkering with electronics, amd gaming in the colder months. Biking in the summer months. Anything that requires your undivided attention helps forget about depression.

Making something. I'm taking lessons on metalworking, and it's really satisfying to have something that I made which can be useful in my daily life.

Honestly winemaking and brewing are great for depression. Can't find the willpower to take care of it for two weeks? That's fine! It's just aging, you can do the next step whenever you feel like it. And then you get to share and everyone is pressured to say nice things, it's great.

I play a video game (usually a retro one) on a low difficulty level. Then beat the computer over and over again. Bonus points if it’s a game I usually avoid because it’s too hard.

Gives a constant feeling of satisfaction at beating the computer over and over.

Sports outdoors with other people

Since you mentioned that you want to create something to share, then art of any kind, including music, is what I'd suggest too. Pour yourself into whatever art or music you are creating and it will turn out well. The key word there is "creating." Art and music, when you are creating it, forces you into the present. There's no room for you to wonder out into the past or the future, which don't exist except in your head. Art forces you into the present and the present moment is the only place you will find peace, joy, creativity, and love.

Physical hobbies like sports are very good, I went to a "martial arts club" for 2 years to train boxing. They shut down the boxing part of the gym during COVID and never started back up. So naturally I started singing. I had been singing in my car to and from work for almost 2 years at the time, so when COVID hit I started singing much more. Now Im in a choir and Ive been part of 2 concerts. You always have your voice with you so its easy to just put on some music and practise. I was still quite depressed so I got a dog, even though Im allergic, and have just gotten into university to get a degree in something completely different from my previous job. I feel amazing these days.

I have started to knit. I usually will watch TV or listen to a podcast and as I become better, I try more complex projects that force me to put more thought in what I'm doing.

I started out not doing anything specific, basically different lengths of squares and rectangles, because I also struggle with motivation to do anything. It was really just so I would have something to do and keep myself busy with. Then I started to include more simple techniques and then motifs and now patterns. If it's something that interests you, I think it's a great way to get distracted and at the end of it, you get a "reward" (being whatever you knit).

I hope you find something that helps you and that eventually you overcome depression.