To be honest, at your level it doesn't matter who you pick to JUNGLE with. What matters is your decision making and ability to get to a situation before it becomes a situation (like knowing that the enemy jungler is about to gank top lane so you move toward top lane for backup).
The best champs to learn the role with in my opinion are beefy guys with good initiation tools.
was my first champ and the one I cut my jungling teeth on. You almost have to try to die to jungle camps with his passive and Q and if your team can't get a kill on whoever you Ult, it's because you picked a bad target at a bad time.
works much the same except he's more susceptible to invasions (when the enemy steals your jungle camps) and can't fight very well before lvl 3 or 4, but after he hits lvl 6 he can be HUGE in fights especially against the relatively uncoordinated teams you'll find at your current level.
I don't really recommend
or
because they're a little more complex and aren't natural junglers (although Panth is being played in the jungle more and more lately), but the two I do list are very cheap if you don't own them already and there's a plethora of guides available on LoLKing and other sites to help you get the basics so that you can figure out what works best for you.