I'm still playing around getting to know the 90D,, So many settings, I'm used to using Leica cameras and Lenses (very basic and very lovely results).. Still here we are with the 90D..
Hands on with the camera is the best way to learn. Looks like you are enjoying your new purchase. Gary
Gary has headed you in the right direction and I will add, now do some-thing most men hate to do and that is sit down with the manual and read it, any thing you find hard to understand. There is always some-one here on the forum willing to help.