How should I have played this hand?

I'm still new to the game and learning through experience. The villian in this hand has been raising a lot preflop in position and made continuation bets what seemed like 100% of the time. I know my turn bet was huge, I really don't remember why I made that big of a bet. I felt ahead all through the hand and it looked like a good chance for a semi-bluff. I bet the rest on the river with the small chance he'd fold a missed low draw, even though all of our money was in the pot anyway. How should I have played this hand?

Omaha 8 hand