I've felt the same way sometimes. Here's my two cents:
First, I really liked
@former player's comments about hobbies. You can do want to want with your life. If what you want is to acquire new skills, focus on doing and learning more than mastery, at least to start. And if mastery never comes, that's okay too. I've taken countless one-off workshops in different skills just to get a taste of some new area of knowledge. And I've also abandoned some projects I originally meant to go further with but after giving something an honest try, realized that pushing through to excellence wasn't worth it to me because it would mean compromising other elements of my life. In those cases, I still learned something, and also am now in a position to better appreciate the mastery of others in those fields.
If you are having trouble building up the internal momentum to do something new, start small to give yourself a win as soon as possible. This could be accomplished either by (1) picking a small overall goal (maybe today is the day you finally learn how to fold a napkin into the shape of a swan? or learn the most efficient way to dry your hands using a paper towel? (
https://www.ted.com/talks/joe_smith_how_to_use_a_paper_towel/transcript?language=en)) or (2) making it your goal for today to finish the tiniest possible piece of a bigger goal, and no more. For example, you are not going to run a 5k today. But maybe you ARE going to put running shoes on, walk once around your block, and then go home.
Continuing with the running example, if you do want to train up to some larger goal, consistency of training is more important than pushing yourself to your limit. If today you walked one block, your goal for tomorrow can be to do that again, and no more. Keep going for a week, establishing the habit that you are getting out and moving regularly, and not worrying how far or fast you go. Then you can slowly start scaling up. There are sample running plans you can find for free or cheap like None to Run or Couch to 5k. But the main thing is establishing a habit that walking/running is something you do regularly. If you're the sort of person who likes progress tracker journals, you can make a running calendar and reward yourself with a literal or electronic gold sticker every day you meet your training goal. Also, if you do go the tracker route, it doesn't have to be super serious! I once made an exercise tracker sheet peppered with internet cat memes. I didn't want to disappoint those stupid cats by breaking my workout schedule!
Finally, it sounds like "what do I do first?" is a mental block for you. If that's the case it's actually very powerful to, as you suggested, just pick something at random and give it a try. If the list you wrote is numbered, draw a number out of a hat and see what fate decides. You can't do everything at once anyway, and in the right frame of mind, picking a new thing to do at random could be a fun challenge. That said, if for some reason you see what number you've picked and suddenly have a feeling of dread, that can be an opportunity to rethink if everything on your bucket list needs to stay on the list. If you're just nervous that can be something worth working through but if you in your heart of hearts don't feel like doing the thing you first pick, you can just let it go and try something else instead.
Best of luck to you!