If you want to draw something but are afraid you’re not good enough, just do it.
If you have a story idea but think it wont be as good as it is in your head, just do it. Writing, painting, comic making, knitting, take the first step.
If you wait and hesitate and put it off because you don’t think you’re good enough, how will you get better? You’ll always be able to think of a million excuses to put off that project of yours. But just do it.
Strive to do better, learn from what you do and don’t like and do better next time. You don’t have to post it on the internet, you don’t have to show it to anyone at all if you don’t want to, that’s okay. But don’t give up, just do it.