In ring, keep reminding yourself not to get involved in big pots with hands worse than three-of-a-kind. Learning to fold top pair and even two pair to strong aggression will save you a lot of money. Once you have reads on players you can take more risks with these hands. My general advice is to just tighten up, especially in early position, and then when you get something, bet it hard. You'll be surprised how much money you can make at 25NL nut-camping. It's boring, but effective.