One thing which I dislike about jungling is I feel like my team needs to back me up. I always hate it when my teammates don't care about objectives, but the enemy team is always grouped for dragon the moment it spawns.
I think in gold elo if you want to jungle, you need to snowball lanes so hard and pray they pull through for you. So many times lanes get crushed so bad, to the point where you cant help them since they are dying 3 minutes into the game. I tried playing Amumu to carry fights instead of the lanes. The result was barely winning fights and we can't take objectives since people would be dead or too low. Or I would do Amumu things, but the enemy team would just be better. Stuff like Fiora, Fizz, Darius, or Yasuo, and dynamic queues can compound this problem. Like a Fiora can just crush my Poppy and keep on killing them. Then they become a hyper scaling assassin beast. Or I have to shut down a Darius early, if I can. Otherwise we can just bend over unless people know how to work together to bring him down.
There isn't a worse feeling to losing a 2 v 2 to a convenient counter gank. Although you can't not do your job as a jungler. That is why I think it is better to lane. So you can have more control over that.