I think i've mentioned it before, but my competency only stems from having just about no button fear. I really just kind of go through and start hitting random buttons until I find something I want.
I also usually have google open on another device or window as a resource.
This all stems from me totally bricking a computer in my introductory C++ course in school while learning "Hello, world". I still don't know what i did. I don't want to do it again, whatever it was.