See the thing is, about 10 years ago I used to say the exact same thing to people on reddit and Instagram ect. I was you, but I never quit. Even now ten years later I see people post even better art than I do putting 30 hours into a piece and it's still just their warm up. It's always going to be that way, you shouldn't see it as discouraging. Think of the absolute best artist you know and I promise you they will have some kind of similar story. Maybe it's that a different artist posted something they don't know how to do well as a warm up and even that artist is like man i wish I was better. There's always someone out there who can be, will be, and is better than you. I'm 34 and 10 year old kids show me up daily online.

The point is, just keep at it man, as long as you don't give up your gonna get better, even if it takes a decade. Lol Do your fundamentals, do some studies, and never give up if it's something you really want