Gotta play safe adcs. Ive recently just dropped playing lucian and any immobile adc because lucian low range, immobile adcs no peel and just get bruiser/assassin'd by the smear the ADC games in silver.
Ive swapped over to Cait/Graves/Ezreal/Corki. All adcs who can either farm safely in lane and do dmg in team fights whether the team peels or the support sucks, and well Graves is an enigma because hes short range and a short escape, but he does so much burst dmg that he works with your typical smear the squishy comp by just blowing his combo into people's faces and coming out ahead. Esp with over-aggressive supports, which is generally the way it goes.
I dunno, I've been dumping on people swapping over to Cait from Lucian lately. She pretty much goes even in a bad lane, and people cant handle the range. Shes just boring as hell. I snuck an MF game in there earlier today, and I'm almost positive I would have won that game with any of the ADCs I just mentioned.
I think the only immobile ADC you can get away with is Jinx, and even then, honestly, I still think you are probably better off just playing someone with an escape and range to save yourself the sanity.
But yea, its pretty frustrating to play ADC at times in lower elo. You just gotta play self-sufficient ADCs. I dont consider lucian a self-sufficient ADC, and playing him for so many games this season is what hurt me. I do well on him; I kill a bunch of people, I make flashy plays, I win my lane 90% of the time, I farm well, etc. But his 500 range or whatever and short escape and lack of serious burst like graves without being geared to the max and getting lucky crits just makes him harder to deal with the irelias and various assas-bruisers tunneling him down all game, when half the time playing someone like Cait, they may not evne see you back there wrecking them.