If you focus so much on the future, on where you want to go, and what you don't have, then you will constantly reinforce the idea that you're a failure, that you don't have enough, that you will always be in yin.
Truth is, though, that success is not about getting, but about maintaining and maximizing what you have. It's a skill, or a set of skills. And there are plenty of basic skills you've already developed.
You've developed the skill to walk, talk, run, read, write, throw a ball, kick a ball, work on computers, type, do math, etc.
You already have the skills you need. Successful writers have a developed skill of writing, successful runners have a developed skill of running, successful mathematicians have a developed skill of doing math.
Even complex skills, like playing an instrument, are simply a mix of really basic skills - hand coordination, listening, rhythm. Successful musicians have a developed skill of all three elements.
You've already accomplished so much and have the basic ingredients to do so much more. Just work on what you have.