Have you gotten exp share yet ? It could really help you.
Yeah, I have it, but grinding is sort of meh. It's hard to level anything up when the highest level monsters you can fight are 32.
I really miss Torterra too. He was such a beast in Platinum, taking full on super effective attacks like a tank and still surviving to dish out knock-out blows in return. Typhlosion has been sort of disappoint, but I don't really want a Feraligatr because everybody and their dog chooses the water starter for some reason. I got Golem for an early source of Earthquake, but he proved totally useless against the second Elite Four guy anyways.
Honestly I need to scrap the whole team, go catch some new 'mons, and see what I can make.