Thats the weak spot of all ADC's. Currently I like to play Varus because it counters so many other ADC's which are played a lot (Miss Fortune, Caitlyn, etc). And like I said, once you get good with your Q, you own everyone. Snipes ftw.
I use to play quite a lol, made it to 1650 ELO roughly and had every champion and a few skins including PAX Jax. I sold the account off for $110 (I think) and haven't played since then and that was a few months ago.