grunching...

pre-flop: I would just fold any small pair, 22-66 up-front in a tight game. You need 4 players with you to the flop to give you the implied odds to hit a set.
flop: You should not calculate odds to the river, since you plan on calling another bet at the turn. With 6 outs, you are about 7:1 to make your draw on the turn. You are most certainly betting without the best hand. Now it gets raised & reraised, so you are getting under 7:1 to call. You should probably fold. Not likely, but on this board, someone could already have a straight, which gives you less outs.
turn: May as well call, right?
river: I hope you folded when you didn't hit, right?

Play on the flop is not fishy, but spewy. The only time you want to bet with your draw is when you have enough players in the pot because the percentage you draw to your winning hand is equal to the amount you are putting in the pot. This is usually done in the right position, and in such a way not to force others out of the pot. These concepts are discussed throught this forum. Try search, and use "pot equity" in quotes.