I've been using lazygit [0] for a lot of use cases like this and it's been great. It's a terminal UI with a bunch of shortcuts. In particular, the partial commit is awesome, as is the ease of amending.

A couple others mentioned Magit which I think is similar.

FWIW I learned Mercurial before I learned Git, and SVN before that. Mercurial was great. I still think its commands made more sense than the Git ones, especially coming from SVN.

0: https://github.com/jesseduffield/lazygit