Ok, I might as well go first: I wish I could draw. Not at the level where I could make photorealistic portraits, but I’ve always been envious of those who are able to scetch something together in a few minutes that perfectly captures what they want to convey. Sometimes words aren’t enough to express what I want to say, and for those situations I would love to have a simple drawing do the talking for me.
I literally wish I had the ability to practice.
That’s really what all my other answers to this come down to. I would love to write better, be a better woodworker, play music, learn languages, learn programming languages, etc. But my mind just… slides right off it. I can’t bring myself to put in the time necessary to cultivate literally any skill.
I’m the same way. I’ve found that I need another person to keep me accountible so taking lessons has help me. I started drums this year and it’s something I’ve always wanted to do and having a teacher give me things to practice and checking in keeps me going.
This may be old advice, and I can’t speak for music or languages (where I myself have the same issue) but for woodworking and programming this is my experience: Once I get some idea for something I want to build, that becomes the goal of the project, not learning the skill itself. It could be carving a small model boat, or writing a sudoku solver, but at least for my part, once I get caught up in some project, I have a hard time letting it go. That’s as opposed to if I sit down and try to systematically learn a skill.
Some suggestions for projects off the top of my head:
The point is just to find something else that interests you, that can motivate you to learn the skill you want :) good luck!