Ask HN: What made you finally grok Git?

I've been using it for over 7 years, and while I've memorized a bunch of commands and have some idea of what the commit tree is, I'm perpetually bewildered by some of its messages or the behavior of some commands - and the only way I can fix major trainwrecks is by nuking a branch (when I'm lucky, the entire repository when not) and copy-pasting stuff until it's back to working state.