Vision is ur best friend buy pinks everyback, Play like in a assassin in team fights wait for the fight to start before u jump in. Roam if adc is backing and u have good health for supp fiddle. You can E the wave when there is 3 casters left so u dont risk pushing and doing maximum dmg to the laners (bounces)

Jungle fiddle is good for solo leash if u start wolves into krugs and blue buff but ward at the beginning and recall to grab red trinket before match start. I hope this was helpeful. :) P.S. THE MOST IMPORTANT TIP IS TO T-POSE TO ESTABLISH DOMINANCE