Looking at your match history, I don't see any glaring problems that would stop you from climbing. (I also don't see the crushing defeat that caused you to write this post, you're on a winstreak right now...)
Improve your farm. It isn't terrible right now, but always room for improvement there.
I notice you play a variety of champs. You should pick a couple and main them. Not necessarily a one trick (because that wont help you in higher divisions) but a few champs that are your "GO-TO WIN" champs. In your last 10 matche's you've played 5 different champions across 4 positions (top jg adc, mid). Again, this isnt necessarily a bad thing, just could be the reason you're not steadily climbing.
Your vision score is decent, no problems there..
Your summs are fine, item builds are fine.
Your winrate is 63% which is really good (50% means you're climbing slowly, 60% means you should be climbing fast.
You need to go for dragons a bit earlier. In most of your games you're waiting till the 20-25 minute mark to get the dragons. If you wait till laning phase is over to get dragons, you're going to have them contested most of the time. If people are busy farming in lane, its a good idea to try and get your bot lane to roam up and get D.
I also notice you're not a fan of herald. Heres a tip from a jungle main... At level 9 EVERY CHAMPION IN THE GAME regardless of items (soraka with support items even) can get rift herald solo. It may take some kiting, but get herald at 14-16 minutes. This almost guarantees you a tower, and if you use it wisely (while the enemy is distracted or taking dragon, you use it on a pushed up top lane) you can get 2 maybe 3 towers before they can react.
I cant see your macro gameplay, make sure your rotations are on point.. track the enemy jungler by his cs early game and ping your lanes where the enemy jg might gank next.
Pink ward your laner's if they arent doing it themselves and they keep dying to ganks. Try to make it AS HARD AS POSSIBLE for them to screw things up.
Its fine to be the carry sometimes, (like your 10-1 Kayn game) but remember that this meta is all about ADCS, so giving some kills over to the adcs, and taking the assists for yourself is more helpful for the late game since your adc will end up outscaling you.
I think you're doing fine man. Get a premade together and force your way into gold. With 63% win rate and your kda being good (High kills/assists low deaths usually) You shouldn't have any problems aside from the attitude. Be positive and keep playing, if you tilt then log off for a break.
Good luck.