Had one.

• it's okay to be apprehensive
• use a reputable clinic - Dr Nick will give you PTSD
• it's gonna cost a bit. Ensure you have insurance or a healthy bank situation. It's like us$2k here all-in but we can get it back from taxes.
• it's a long process and there is weird stuff going on. Listen to the practiced pros and warn them you're a noob. They'll understand and ideally warn you which ooky thing is happening next so at least it's not a surprise.
• sometimes the temporary cap pops out if you have one while waiting for the permanent one. As long as you can bring it in to the office, they'll glue it back in in 2 minutes. You want them to glue it back in.

After a period of time you will be totally unaware of it as anything other than a tooth. It's not expected to fall out, split, or receive coded messages.

Breathe.