I never considered quitting, but it still feels bad. Putting your code out there for the first time feels vulnerable (sort of similar to publishing your writing or public speaking) and it feels bad to get shit on.

When you've been working for a while you can filter out the noise regarding formatting and other smaller issues (or, ideally, get autoformatting set up), and it gets easier to separate your ego from your code. When you're new though, and showing someone else your code for the first time it's hard to see a huge volume of what seems like substantial negative feedback on your code (and by extension yourself).

I realize the "right" solution here is that people shouldn't equate criticism of their code with criticism of themselves, but I think that's a huge thing to expect at first and contributes to making the field unwelcoming.