I am a jungle main, and I could use a little help.

So my problem is that I'm actually pretty bad at lane phase and importantly I almost never come back in games. When I do it's because someone else popped off and carried 1v9. I rarely deserve these wins. I am endeavoring to learn a new role and new champions.

1. I own all champions and have played literally all of them at least a little.
2. I have typically good CS and am always trying to go even in lane. As long as the rest of the team doesn't feed I show up in team fights. If I am on a winning lane matchup and not against someone monumentally better than me I will nearly always kill my lane.
3. I am willing to put in any number of games if the champion has good fundamentals not numbers.
4. I don't have good mechanical skill.
5. I don't feel I am a hard carry I typically play a more supportive style unless massively ahead.

Currently I am attempting to learn mid. I could potentially shift to top but I feel I have a hard time winning top lane even if the lane is gifted to me because it is a long lane and if I screw up I get zoned forever.

EDIT Champs I have Rank 5+ Mastery on are Nunu, Morgana, Kassadin, Karthus, Shyvana, Ekko, Elise, Hecarim, Janna, Evelynn, Rammus, Sejuani, Renekton, Naut, Amumu, Tryn, Shen(Prerework), Khazix (Prerework), Zyra, Skarner, Malphite, Maokai, Jinx, Lissandra, Reksai, Fizz (prerework.)