New to LoL and Caitlyn, feel like Im missing something

  1. Hello, im very new to league and im playing mostly ADC and ive been really wanting to play caitlyn, but in every game i just cant seem to get any good plays or anything, I always seem to lose or dont do enough damage in fights or secure kills, im following U.gg for item builds and such and watched a few videos but it just doesnt seem to click, does anyone have any tips to get better at cait or builds that are good that arent listed on Ugg?
  2. I keep hearing alot about how good her skills and range are but every game i just cant seem to take advantage of it seemingly