agree with element,

You're out of position and that is not a great hand.

Your opponent should have fold it to but that doesn't excuse your hand. And with the fact that he followed you on your hard raise, you should have been very prudent.

Anyway, the mistake was done PF, then you felt in love with your flush draw and after you were committed to the pot..... msitake was done PF, in early position, better have great read on everybody to play these kind of hands.

Position is a lot more important than your hand