LF a jungle mentor/coach

I am kinda new to the jungle role, and would love to pick the brain of a pro jungle player. I am current in love with evelynn, zac, vi, but I own most of the meta jungle champs. I would like to learn good routes for eve, and how to clear with the most health...jungle invading when to gank when not to gank. I know some of it, but my timing is off sometimes, and I stay when I should leave try to save people when I should not. Thanks for reading.