Edit: I can't close this thread, but it is over. I have gotten enough advice, checked enough guides, streams and such (not that I didn't before this thread). I have a totally different attitude now. So if you still want to read on and comment, do as you like, but since there are more threads in this forum that might need your attention more then this one does, please feel free to comment on those instead of mine and just let this one die.
In advance: sorry for this rant I'm about to type. If you don't feel like reading someone rant about elo hell or are going to post negative comments, please refrain from posting. I'd really like to to get constructive feedback and help.
In my attachment you'll find one of my latest games. I'm getting more and more games like this where I just can't carry the team anymore. I'll tell you how this game went.
First of all, in champion select the roles get divided nicely. Only our last pick wanted to play olaf jungle. I wanted to play top, but since someone insisted on being gragas top (without even knowing their picks), I took ad carry, since the only roles still not taken in account for were ad carry and support. I thought that one of the last picks would go support (since I was third pick, together with second pick), I know, big mistake.
Olaf went bot with me and started last hitting. I politely ask him to stop it, since I needed the gold. He thinks he is missing exp if he doesn't. I tell him he doesn't and then he says he needs gold too. I told him that he wanted to play olaf bot, next to an ad carry, knowing that top, mid and jungle were taken. He then just stands in the bushes doing absolutely nothing, not even harassing 'since he wasn't supposed to do anything'. So we get ganked bot and he doesn't want to go bot anymore, since I told him that he didn't do anything to help me (me seeing it coming and going to my turret, he just stays in the bush, gets ignored and does absolutely nothing to help me). So bot was lost without him.
Then the team decided to not surrender, so they can troll around a bit more. I just do my thing and still and up with a pretty decent score, seeing how fed their team was (they camped 10 mins in our base at the end of the match) and how bad my team was.
Anyways, lately I've been getting games like this the whole time, although not as bad as this. My match history features a 16/5/11 loss with rumble because my team did stupid things like not pushing, getting caught because they don't ward. Also an 0/12/8 loss as alistar support (I know, it's bad) because I tried to initiate for my team, end up getting focused and my team not even responding, while they're right next to me.
I've been at 1050 before, because my first few ranked games featured afkers and leavers. Then I got up to 1380, just to get back at 1050 now gradually (over 50 games or so) because my team does stupid things (I try to give them directions, ward for them and tell them to ward, do objectives, but they mostly don't listen to me).
I hope I can get some feedback on how to get out of elo hell, if you think I belong there, say so, but do it with reasoning please.