fiora's getting nerfed because she's broken right now, diana is fine but she falls off late and spikes mid, whereas shyv conversely is weak early and strong late. you can honestly climb with anything, i climbed from bronze to gold last season with basically just nocturne, but for low elo it's probably best to climb with an early/mid game jungle who can scale decently. you want someone who doesn't rely on teammates at all, so rengar, vi, nidalee, elise, xin, udyr are all easy to carry with, though nid and rengar and maybe elise might be too difficult for low elo mechanics.
all that said, i climbed with tank oriented junglers and play to the meta. if you're good, you can climb with anything. but looking at your stats, you aren't very good and you're probably costing your team games with awful cs, kill participation, and high deaths. as a jungler, anything below a 3.0 kda shows a likely negative influence on your games (with some exceptions), and your w/r reflects that. you can see on my prof that i average over a 4.0, with some 5.5+ and a minimal kda around 3.0. i don't play for kills, but i pick my fights, ward hard, follow the enemy jung, and as a result win a majority of my games.
to be frank, i don't think you're ready to jungle, and should probably develop basic mechanics first. i did the same thing last season (my first), and really wish i had mained mid/top before moving to jungle.
EDIT: tl;dr- you're not good yet, it's not about what champs you play, it's how you play and what you're doing/not doing.