(PLEASE READ MY ENTIRE COMMENT BEFORE UP/DOWNVOTING) I honestly think jungle has been the most balanced it has ever been. Jungle just has way too much influence on lanes. Out of the last 40 games, I've played, I've lost 16 games, and of those 16 games, 13 of the games have had a huge deal to do with one of these 3 things that the jungler does. 1. Being unable to carry, despite being super fed and taking kills from laners. 2. Being unwilling to gank and permaflaming. 3. Flat out getting outjungled and proceeds to soft int. It would be extremely ignorant to say that I could do nothing in all of those games because I absolutely could, it's just a general pattern that I am noticing in my games, that whenever my jungler is losing, I lose a lot more games. In seasons 6 and 7, Jungle was absolutely bonkers, and only getting toned down slightly in season 8 with slight xp nerfs. Also, I should probably post this from my alt since its probably going to get a ton of downvotes
- If you carry as a jungle (having more gold than laners), then you lose, because laners have no gold to be self-sustainable and you can't be everywhere.
With proper pathing, all of this is easily avoided. In the games that i do win, even if the jungler has a low % kill participation (i.e ganks, skirmishes and teamfights) is still on par if not higher level that the adc. Even with just doing proper objective control (which i have a hard time believing you do, since you end some of your games with blue and warding trinket, and the most control wards ive seen you buy is 3, with some games as low as none
- If you fall behind as a jungle (having less gold than laners), then you lose because of inefficient ganking potential (under leveled/ less items)
Duh. If you path improperly, then you are obviously going to fall behind, and thats what is supposed to happen, so that you cant just walk into your jungle and farm back up to become as strong as laners, despite being a few kills behind.
- If you have less objectives then the enemy jungle, then you lose by default because buffed enemies (w/ right team comp) steamroll into sustainable lead
- If you DO manage to grab objectives, then RIOT's broken-ass balancing system nulifies that if the enemy has OP champs that can snipe while under-leveled, having no health or items (aka. JAX, MUNDO, DARIUS, SYLAS, AKALI, YAS, Quianna...blah blah blah broken-ass champs (x130 and counting!!!)
Again, building a lead is part of punishing you for improper pathing and objective control, if you do all of that properly, you can win with any champ and any team comp. And in terms of balance being a problem. You can play literally anything, and if you do it well enough, you can climb to at least plat with it, ask pretty much any coach and they will give you the same answer.
- If you camp a lane, then you lose because you're putting yourself behind in XP (as well as your teammates), especially if yall can't even get tower
If you cant build a lead while camping a lane, youre doing it wrong in terms of pathing, because camping a lane as a jungler does not mean giving up xp, if anything it should give you more xp because you also get xp off of killing minions, and should give you even more gold if you get platings. In terms of putting behind your teammates, not so much, because if your ganks are successful, the enemy needs to reset and back off the next 2 or even 3 waves, making the xp you "steal" not matter very much.
ALSO, roaming is killer for any position if done too much, and that's what jg does 100% of the time is roam, roam, roam, maybe get a few camps along the way, roam, roam , roam, some cs from lanes that you gank for, but nothing really substantial to make a difference.
Roaming without losing XP is 100% doable. If you, again, path properly in your jungle then you should have no problem staying on par with your bot lane in terms of total XP. For example, if a support roams, most of the time they make sure all enemy minions are dead so that the window that they do leave lane, they lose no XP
THE POINT of this is that jungle has recently become increasingly irrelevent as a position. If your teammates do NOT have the upper hand in their lane and lack basic comprehension of how to play LEAGUE OF LEGENDS, then it's GG (usually from the start; especially in solo-que; Low Elo; gaming w/ full-tilts).
Jungle is becoming more and more balanced, but that doesn't mean theres no room for good pathing and ganking, because thats what makes the difference between a good and a bad jungler. And people tilt in all elos, from challenger to iron, nobody is 100% tilt proof.
You literally have to "spoon feed" your laners (by yourself), take objectives (by yourself,) drop wards (by yourself), coach team and have them NOT listen to your pings, baron calls, or MIAs while ... all the while, you fight an intense urge to snap your PC in half and throw its remains out the nearest window.
A junglers play style is literally to help their teammates win lanes. A lack of understanding of how waves and priority is how successful good junglers make sure their teammates are there to contest an objective, and if you feel you wanna destroy your pc when you play league, League probably isn't for you, and you should probably find another interest than videogames
Edit 1: Edited for easier understanding in first statement
or Master Yi 
. I would like some buffs to the role like maybe better jungle items like a jungle item for Assassin's that has Armor Penetration.