If the plane noses up when you drop flaps, you could mix in a little down elevator. If it just balloons, without nosing up much, try less throttle. The main point of flaps for landing is to let you fly more slowly than you otherwise could without risking a stall.

I am no expert on flaps, though I have them on a couple of my planes. It would be good if someone who knows your particular plane would contribute.

I'm not a flaperon expert, either, but I know enough to avoid them. Using them makes your ailerons less effective and increases the risk of a tip stall. In exchange you get not much, if anything.