What role do you play ranked and why?
When I first started playing ranked seriously in season 4, I got placed into Silver 5. For the duration of that season, I mostly played bot and jungle. The season ended and due to how games went, I had stayed in S5 the entire time. I'd win some and get to about 70 LP and lose some and drop back down. I probably had an average of about 50LP. Never even saw a promo game. Then in the preseason, something happened (Poro King?) and my MMR tanked. Hard. I did better in my placements and ended up in Bronze 2. I knew I'd have to work hard to get back up and hopefully climb into gold this time.
I realized early on this season that I was not good enough to carry from the roles I had chosen. Due to my playstyle, I am a... hesitant jungler and could not snowball games early. I also don't have the greatest grasp of timing of ganks and whatnot. My playstyle and chosen champs as a marksman means that I don't really get in my groove until late game. I love supports as someone who often still plays that role and just knows the struggle in each position, but sometimes my lanemate would not really gel with me. If I was an aggressive champ like graves, they'd be passive. If I was a passive champ or behind in any way, they'd be too aggressive. Sometimes they'd just peace out and leave me alone. Sometimes, we'd be fine together, but the other team was also really safe. This would lead to a really slow and boring laning phase where nothing would happen and nobody would get strong. Normally this'd be fine, except often enough other lanes would not be doing so hot. These things happen and everybody has a bad game, but I realized that if I wanted to climb, I would need to be the one to carry myself. I also realized that if I wanted to carry, I would need to be good enough to essentially win the 2v1 by myself. Otherwise, I was not guaranteed anything. I also realized that I was not good enough to do that. If I wanted to stay where I was, that's fine. I'm an okay player that I was confident that I could climb, but not good enough to know that I would climb from those roles.
So, I made the decision to play Mid and Top. From those roles, everything would be on me. With a more linear power curve, games would not be lost before I could get strong. From those roles, if I died, if anything went wrong, it'd be MY fault. From there, I can't blame anyone. I didn't die because I ganked and laner didn't follow up. I didn't die because lanemate got caught and I tried to save them or enemy lane was able to easily dive and 2v1 me. If I die, it was because I fucked up. I didn't ward, I pushed too hard, I stayed too long, I fought when I shouldn't have. Whatever. If I won lane, it's because I knew I could win and did so or I got some help. If I lost lane, I didn't even have the option of blaming someone else. Sure, I'd still lose games because other lanes went poorly, but that happens. If I was able, I should have helped.
I still sort of play champions that mostly come into their own in late game, but now it's just a matter of knowing what I can do and not having to hope that everybody else acts how it'd benefit me the most. After I switched, I did manage to climb back up to Silver 5 and from there up to 4. I've taken a bit of a break lately because of school, but I look forward to getting back into it with an expanded pool of champs that I'm very comfortable with.
Sorry for the super long post for mostly no reason, and thanks for sticking with it this long if you did read it. I look forward to seeing your guys' responses.
TL;DR: Used to play Jng and Bot, now play Mid and Top to force internal locus of control and facilitate climb.