Not sure if I played correct on flop, turn, or river

[bbartlog]

Fold flop. Low is out, your pot equity is too small to be paying to chase for diamonds.
Turn is marginal. If you know SB will call, I guess your big flush/wrap draw gives you enough outs to the high to pay for another card.
River... interesting decision. I fold here; not only are there eleven cards that have to be totally absent from my opponents' hands in order for me to have the high, but if either one has a pair in hand I also don't have the high. Still, your call would be correct if we assume both opponents have A2xx; then they only have four unknown cards that could match the board, and the chance of us being good for high rises to about one in three.