Should i quit writing?

I am new to writing fanfictions, and just writing in general. I mainly write in english, even though it's not my first language. Recently I wrote a few gift fics for my friend, and I was happy with their reactions.

I like writing, but lately I feel like it's bad. Sometimes I take a long time to write a fic for my friends, but I am so afraid of posting it, that I get so anxious and whenever i think about writing i feel guilty, for my bad writing.

I don't have much explanations for why, but I feel so dumb. I like writing, but I feel like I suck so hard, that it's better not to write. Does this even make sense?