I rebooted to the installation media to try another install. It was black too.
I assume you've probably already checked, but in case not, is the boot order correct? What happens if you remove the SSD entirely and try to reboot to the USB without it?
Also, does the SSD boot in another computer?
If you can't get anything to boot on the tablet, I'd RMA it.
If you want to improve significantly, go read someone else's code and modify it. Try to fix a bug in a program you use, add a feature you want that doesn't exist already, or even just do something simple for the sake of proving to yourself that you can do it -- like compiling it from source and figuring out how to change some small snippet of text in a message box. Even if you don't succeed, if you put in a serious effort attempting it, you will almost certainly learn a lot from trying.
Edit: changed wording to try to be clearer