I am a female Piscean Dragon (1976) and he is a male Cancer Dragon (1988)...compatibility??

Hi, generally, yes.
Many personality common points make you dependent to each other, However, sometimes, you may be not that harmonious. The similar stubborn characteristics may also cause some conflicts. but don't be mad at each other 'cause it will pass soon.
Actually, you do well in sparing each other enough personal space, which helps your relationship last longer.