Looking for Advice on Climbing

So I'm Currently G5, About a month ago I was G2. I've been trying to adapt to the new meta but I can't seem to find things I enjoy playing. It's very difficult for me to climb all of a sudden and I seem to be playing worse then before... i took a good week off and I still feel I am not where I should be playing at. I understand the game in the sense of micro-managing and I am very capable of making plays. I just tend to run into the problem of one lane getting so far ahead that i can't do anything about it, or feel like that. I've tried to main one role in the past, but i find that when I try to do that, I rarely ever get that role because of pick order.. even saying highly pref and Main people still refuse to let me play that role. So I gave up on doing that and I tried to just play one or two champions. And i would after bans go through in fear of someone banning my champ to troll me, say that I only play one champ. And that usually works, but then RIOT decides the game needs to change and through shifting meta, my champion becomes useless becuse his/her counters get buffed or he/she gets nerfed. So I gave up on doing that because It's hard to play matchups going in with a disadvantage. Now, i've been trying to play support and let my team carry me while i make sure my adc doesn't get destroyed in lane. But some games i play well others i play avg. and i play bad occasionally. but when i play bad its because someone doesn't like my picks or someone on my team decides trolling is more fun then winning. and so it offsets my mood which throws me off in game. I feel that I want to just go back to playing one or two champions again and just playing that champion(s) but, it's hard to pick one champion out of the almost 200 that Riot has created for some stupid reason. Basically I'm just looking for something to help me climb. If it be Stradegy, Picking an OP, Maining a Role, Or anything else you could think of! -Thanks! :D