[Fantam]

You seem to have overplayed your hand.

I think that you should have called the flop bet, getting odds to catch an A or K and hope the action was closed behind you by UTG.

Then I think you should have checked the turn unimproved, while you had the chance to see the river card for free.

If it had still been checked to you on the river by then, I think you should have taken the free showdown, because if you had bet, I would only have expected a better hand than A high to call.