Your stradegy is to stick with your jungler and help him take out objectives. Try to finish your jungle dagger as fast as possible. fist leach i recommend using smite when buff is on full hp and let jungler take the rest. early gangs usually becomes 1 vs 3 and your duty is to heal if needed and keeping both jungler and laner alive. Smite is good when helping with dragon and it works well when used to slow enemies. farming is very slow so try to smite some of those Cannon minions or Krugs on the way. ADC might get mad at you so its recommended to mute it when match starts. Remember you're a support and not Jungle so try not to steal buff monsters! And Remember to have fun! :)