the internals part is def a rabbit hole, but don't get stuck there if you just wanna be productive. focus on mastering
git rebase -i
and reflog first; those are the real life-savers when things go sideways. once you can navigate your own commit history without fear, the deeper stuff like blobs and trees starts to make more sense. if you ever lose a commit, just check
the reflog before panicking . it's much more useful than memorizing the entire object model.