I don't believe it's even doable. Could I pick up an instrument and learn to noodle around on it from watching YouTube videos for a few weeks? Possibly, although for some instruments I doubt even that's possible. But to attain basic proficiency, much less the level of mastery required to play at a professional level just isn't possible without someone to show you how and to correct you when you're wrong (and thousands and thousands of hours of practice, of course).

I teach myself skiing, I am a qualified coach as well though.

Am self taught at computing too.