If you're not profiting from them, my guess is that you are getting scared away from hands that you are winning. This is something I am still trying to work on myself. The fact is, most hands do not hit the flop, so having a made hand in your hole cards is an advantage. Alternatively, you may also be over playing when you play these hands in multiway pots. Heads up, you are likely to have the best hand by the flop with PP, but in a multiway pot the water gets considerably more murky. This can also go for if you are playing out of position.