I mean, I don't think actually I'm horrible (though I might be. I wrote this post while on a massive losing streak and was just fed up with it all), but I don't think I'm good either. I just don't really know what I'm doing wrong, and how to improve it. I have some games that I go 25/3 and win my lane and help others win their lanes, and some games that I go 0/10 and lose my lane in 10 minutes. There really is no pattern or rhyme or reason to it all that I can figure out, so I don't know what I'm doing wrong. I know I can get better, but I just need to figure out what it is that I need to improve upon. >.>
I actually bought Azir a long time ago, and have rank 5 on him now. I can play him pretty well, and know how to Tokyo Drift and all that. I know all the basics of League in general, such as trading, roaming, ganking, lane control, freezing, objective control, CS, when it's safe to go for a kill, all that (though when I lane against someone like Fizz, Diana, LB and etc., I have my ass handed to me if they're any good).
My typical playstyle is kind of passive, and I just farm until I see an opening or the enemy messes up, then I capitalize on it. If I can afford to harass them (like, say I'm Darius against someone with low damage, or I have a lot of range with Azir or Syndra), then I'll do a bit of poking, and then kill them when I'm able to.
Honestly though, I think I just need to find someone who's a high rank (like, high plat or diamond) to watch a few of my games (good ones and bad ones) and tell me what I do right in my good games, and tell me what I need to improve on in both by good and bad games. Get some lessons from someone who's climbed out of ELO hell. :P
And walls of text are fine. Unlike most people, I actually enjoy reading, and I've gotten quite good at it. Soooo, type away!