Finally, after a while, I've gotton better a climbed up to Gold! I'm still not good but I'm not as bad as I was before. I still have to improve though and I still have a long way to go.

How I did it:
I watched a video on YouTube explaining how maining one champion that can go in multiple lanes helps a ton. If you get used to that champion, you already know what that champion can and cannot do so you should have no problems in the other lanes. A good example of this would be Cho'Gath. Cho'Gath can play Top, Jungle, or Mid (on average). If you main Cho'Gath Top, but someone takes the top role, you can still play Cho'Gath mid or jungle and still have a good idea of what you're doing. The more you play that champion with each role, the better you get with that champion and the more you'll win.

I never raged at my team. Never EVER rage at your team. No matter how bad they are. Even if they're 0-10, still encourage them to do better and to keep on trying. Nobody likes a team that yells at them for every tiny mistake that they make. If there's a troll on your team, just ignore them. After all, trolls get their enjoyment out of other people getting upset by their tricks so if you just ignore them, for the most part they'll stop.

Never give up. I never gave up! I played many many many games and finally got to Gold. Sure maybe there were some stressful moments, but after all of that, I got to Gold.

Good luck to anyone who reads this! You can do it. Have that mindset.