3 quick tips for jungle
Camp your winning lane.
This doesn't mean 100% ignoring the losing lanes and sometimes it does there are alot of variables that go into this. Mostly you want to camp your winning lane because its easier to snowball a winning lane then it is a losing lane. Your laners are also showing they arent very good players so that is our assumption. We dont take risks in solo que and we dont trust our teammates. Sometimes you will have to 100% ignore a lane like botlane until they get caught and overextend like they 100% will. I won basically a 2v5 game last game because I got top extremely far ahead while bot was 2-15. I farmed waves let my team get caught lost alot of obj BUT by the time I got my core items me and the toplaner could just 2v5.
Get good at routes and farming, think 10+ seconds ahead.
You always want to plan your routes. Efficiency is very essential in jungling you will need to be able to keep track of everything while you farm and see where you can go. This also comes in with know your matchups. If you know you can get early kills dont force them but farm and area nearbye and wait for an opportunity, if it doesn't come farm more. Know jungle matchups if you can invade and get out make sure to always have an escape route or two before doing somewhat risky things.
Keep playing the same chamions
This way you will get down very minor details where games that look unwinable become winable because you have muscle memory on the champ(s) you play. I suggest sticking to two champions for main and off role. Play easy champions that way you can think more about the game without having to worry about mechanics. And if you did have the mechanics you wouldn't need this advice post so play easy stuff.
champion suggestions for (obviously if you are higher tier you can play the lower tier champions)
bronze/silver (eve focus getting lanes ahead then farm)

gold/plat

diamond 5

d4 up
