Looking for general help/advice (Diamond+ please)

Hey,

I'm a player who has gotten as high as low diamond, but that was after going 9-1 in promos, being placed in Plat 2, and eventually decaying back to plat (I quit for a while). I'm a jungle main and I can carry from there pretty consistently. I'd say I'm mid-high diamond level in the JG, and high gold - low plat everywhere else. I have experience with 5's and while I'm pretty good mechanically, I usually win through decision making and timing. That said, I feel like while I'm improving, it's not happening fast enough. I don't know where I'm lacking right now, though I know I must be since my climb from P5 back to Diamond has only recently gotten easier. I conform to the meta as much as possible however I stick with old favorites and pull them out when I can.

My op.gg: http://na.op.gg/summoner/userName=james+barden

I know my CSing on solo lanes/ADC can improve, though I do customs to practice it so I think I have that covered. I have a good idea of when to fight, how to fight, where to fight, and when to do what objective, as well as a keen sense of where the enemy jungler is and where I need to be relative to them. From a ton of Shaco games, I've gotten proficient at maximizing counter jungling while keeping a gank-heavy outlook. If a high diamond player is willing to go through some things with me, maybe look at where I can improve, I'd really appreciate it. As of now I'm helping a lot of my friends in silver-plat learn these kinds of things, but I guess I'm in a bit of a rut in terms of improving myself.

If anyone feels like they wouldn't mind going through my builds/match histories/past games/etc, and maybe play some normals to see where I can improve in every lane, that would help me a ton. Ultimately I'm looking for a direction, since I feel like I'm at a pretty good place but still want to improve asap.