I do post mine, and even I know they don't/aren't ever going to measure up to those better writers.
Hey, you never know. My first stories all make me cringe when I think about them... but with practice and feedback and encouragement, I like to think I've improved over the years
I feel like I've learned an enormous amount about the craft of writing, POV, how to structure things, etc. I don't think you can really understand stuff like that without trying and failing a few times!
So don't write yourself off so easily.
PJ