Improving My ADC'ing and Climbing to G5

Hey everyone, I was a Season 4 S4 player and I feel i have it in me to make it to Gold this season for the ADC Victorious skin, but I am afraid to finish my provisionals. I am 3/0 in them ATM, each win with .

I feel my strongest suits with ADC, is keeping up farming mid/late game, and i teamfight well and can usually stay alive. I can use QSS well and build defensive items before i 'need' them to prevent too many deaths. My weakest point is early game farming and trading. I am basically trash and start throwing until i get a full and i become much more confident once i get a . is the only ADC i can play well, and I own but my skill level is much lower with them. is my comfort pick and she has served me well, even against bad matchups like . Another obvious problem is that if my support and I don't mildly synergize or the aa minions or are too aggro it puts me behind because it stresses me out. Even in normals this happens.

I can play and well enough, and usually become a threat to the enemy team with because of my aggro playstyle with her and become a secondary AP carry with basically a . Adc is my primary role, supp my second best, and while i can play mid, i would sooner go into a jungle role with , avoiding top at all costs.

Do you have tips on what ADC's would be a good alternative to , like etc? And any advice on how to get better at laning phase and winning the CS battle?

I'm not asking good questions but feel free to add anything you think may help me out. I just want to improve because I belong in low silver at the moment and i don't want to be there because i think i can improve