Critique so I can improve my Diana?

https://na.op.gg/summoner/userName=old+master+roshi

Used to main her end of s5 or beginning of s6, but dropped her. Played her earlier this season as JG but was not too successful as I used to be. May be the jungle changes. Recently picked her up back mid and top. I've always been really comfortable with Diana and hope to climb back to Gold and possibly even higher with some tips.

(Ignore my loss streak lol. I started trolling and literally blind picked random champs)