i like the idea of trying to get max value for this hand.. but you made a few key errors i'd like to explain.

the flop is somewhat of a kind of situation that if you raise here you can probably eliminate one opponent and the one who initially bet out will call anyways.. and now the field is thinned and your chances of winning at showdown are higher even though right now you have the best hand.

with flops like this its very likely he limped with a small pair and you dont want multiple opponents with many different combinations of hands when you are sure you can nail the guy who overplays his set.

on the turn you have to wonder why both of them flat called here. if they've made their straight also.. im pretty sure anybody would come here with a raise because of the spade draw and relatively passive betting rounds.

with that miniraise on the end.. what do you put him on when you call? or did you get too excited about your made hand and forget about whats in front of you.. because that is a costly error.