Find myself getting sucked out on.

Hey guys, I'm new to the forums so don't beat up on me too bad.

Everytime I have a hand, weather it's top pair, a high pocket, trips, i always end up being called when i bet big (giving bad pot odds to drawers), yet i find myself being called, and getting sucked out on all the time.

I played heads up vs a buddy last night, he is a pretty horrible player, almost anytime I hit something better then average, he'd stay in and hit a flush, or if a straight would beat me he'd usually hit that.
But that was just last night, almost everytime I get top pair, or trips, someone else gets better trips or two pair by the river.

I really don't know what to do at this point, any suggestions?