Initially, when I started working on git, I was terrified of squashing commits, I always feared that I will do it wrong and will lose some code, but it's very simple once you understand the underlying logic.

Making ammends is easy when you know the right command to do it.

Doing a diff is very simple and easy, just rememeber the following command and your set for life.

The simplest way of revering commits is to reset your head to the last commit you want and just discard the changes, here is how you can do it.

Move between differen branches is a little tricky if you don't remeber all the steps, but you can always bookmark this page for it.