There's two ways to learn abstract tools.
There's rote learning: if I do this, this happens. This'll get you started.
But real understanding happens when you form a mental model of the tool.
Sounds obvious, yet so many engineers use Git every day only knowing `git commit -am`.
(Of course, this is where I should plug my tutorial that helps you form a mental model of Git in ~11 minutes: https://agripongit.vincenttunru.com/)
This is a cool tutorial!
However, for myself the most important moment understanding more about git was when I realized a commit is really a snapshot of the whole repository in a given time.
This changed my attitude towards all git operations. Suddenly I understood that basically anything in git is comparing snapshots to each other.
So, you are absolutely right when saying that creating a proper mental model of a tool is crucial.
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