Idk what to tell you man, if you're not growing food or cooking food or doing anything for the people that grow and cook food except be competition for the other art they could enjoy or make, then people probably shouldn't be giving you money until they can figure out how to organize a society that produces enough food for everyone
Also, you only feel pressured to get incomprehensibly infinite practice because you made it about money. I haven't practiced piano in forever or directly used my piano skill for any of the music I've made, and I've never heard any music better than what friends have played for me after mere portions of mere human lifetimes of practice on their instruments, back when I had friends.
If you have friends, no level of virtuosity you reach or money you make should ever be as meaningful as time you've spent jamming or even just listening to music with them