[kstenerud]

Don't post code for critique on public forms. That's just asking for trolls and tools to beat you down.

GitHub is fine. I've yet to see a troll problem there.

Try contributing to a GitHub project you like, run by civil people (check closed issues and PRs to see what people are like). Accept critique and grow.

Of course the fastest way is with a mentor, but they're hard to come by.