A wise man once said, "The best way to get something done is to do it yourself".
So I started playing jungle instead of top and mid in order to climb and I am currently sitting at a 65%+ winrate merely because the morons you find playing jungle if you don't play it yourself are so utter bad in this season, it becomes impossible to win with any other shit role this game has to offer.
The problem with jungle isn't that the role is weak. No, jungle is probably the strongest role in the game right now. It's strong to the point where playing anything else to climb feels like trolling because if you'r serious about climbing, you can't possible give this role up to some afk farming moron who won't ever gank a lane or try to contest objectives.