At the moment I just pick Cait 80% of the time and Jinx 10% of the time. And 10% of the time shit........
Will like to add 1-2 champs to my adc pool.
My playing style with Cait is pretty much the same, I try to CS till I got my crit, then I attack the ennemy adc if I can. Recall at 1550 if everything go well. doran - BF---->IE----->BT Jinx I did pretty much the same
Can you suggest me 1 , 2 good adc ?
you should probably learn these 3, if at least only to know how they work for certain situations.
Caitlyn is a lane bully but isnt really that good mid game, Jinx is strong late game in team fights but also kinda lacks a good mid game and isnt the best in laning phase (she isn't bad by anymeans but isnt strong either)
Graves and Corki are both very good in lane and have great mid games. Corki kinda falls off late game but you can seriously abuse his trinity force powerspike for amazing damage mid game and should be in most adc mains pocket. Graves has better teamfight burst than any other adc I believe, and he is really just another that should be picked up for the same reason.
Vayne is a tricky one, I feel most adc's should learn to play either her or Kog'Maw for their tank shredding capabilities. Kog is easier to pick up than Vayne and Vayne has a really hard laning phase. Learning her can greatly improve your mechanics on any adc for laning phase and late game she is extremely dangerous. So definitely worth picking up.
I wouldn't suggest for a goal, as it's very easy to get out-laned, and catching up can be tricky.
One of my favourite champs to learn adc and improve on is 
, despite his lack of an escape, even if he is weak late-game, his ult provides utility, and can set up some nice wombo-combos if it spreads. Hell, even if it doesn't spread, it will force the enemy team to disperse a lot of the time, allowing assassin teammates and whatnot to do what they do best. His passive makes csing easy, and he can trade very well with his long range.
I definately agree with though. He's got it all, an excellent passive for trades against tanky supports, post-6 range, and a very nice escape.
Don't be afraid to look into other options as well, like 
