It's humbling and exciting at the same time. You realize how much there is to know and how little you know. The big realization for me was that you can just decide "this is who I want to be," follow it while ignoring other possibilities, then try something else.

You can opt out of the chaos of possibility and see how far you can go with one path before hopping on another rocket. You can't do all the things, but there is enough time to give full attention to one thing for a while and have time left for quite a few more things. Some people even manage a few things at the same time! I use a software synthesizer made by someone who is somehow a math whiz, programmer, and musician all at once.