>>45Only thing I can suggest is practice, practise, and little more practise for good measure.
Try learning songs that aren't too complex, but where both hands aren't playing the same thing. Also, look up some hand independents technique tutorials, and practise a few of those once in a while.
As a drummer, I like to play with metric modulation, so I'd play 4/4 on my right and 3/4 with my left, then switch them over. But that's more rhythmic rudiments that I've converted to piano, rather then proper piano techniques.