I play for early, yet we're always behind

Hey guys, I'm a Gold 5 jungler maining Elise . I feel mechanically honed, but I don't feel I fully grasp how to direct my pressure as a jungler for optimal results.

Sometimes I'll camp a lane for laners who end up just getting picked off, and other times I won't do a thing for a lane and they'll do very well. Either way, it seems like we're always playing from behind. As a jungler, I feel this falls on me because I'm not properly upstarting the game. I was hoping to get some tips from the community as to how I should direct my pressure.

Generally I like to focus my pressure on champions that can snowball hard. Champions like Yasuo , Zed , Gangplank , and I used to offer lots of pressure to fioras, but they always seem to perform poorly in my games so I might swing about 1 gank that way and see how it pans out. Stun/snare champions like Lux, Annie, Leona and Ryze are great too.

Though it seems no matter what I try, we have to recover from massive snowballs the enemy team has managed to create if we want to win; we're almost never ahead. I was wondering how you guys like to distribute your pressure when you're playing an early game jungler. Any tips you'd like to throw in is also very appreciated.