I'm guessing the flop was more a steal bet than a value bet of your draw....but it's just too easy to get called by one or more players with a board like this.

For instance, many 6-maxers will call you with overcards, flush draws, straight draws, a pair of tens, etc. So your chance to strike out the side goes down considerably, and your safety net (hitting the OESD), is a bit too vulnerable to redraws.

As for the river bet, all you need to do is answer the question what would he call with that you can actually beat?