If you crave action, consider dropping down to micro levels and playing more aggressively there. This should accomplish two things for you: satisfy your craving to play more hands, and also show you that it's better to play tighter if you want to win, because most likely you'll be losing money. You can experiment more and see for yourself, while only risking a dime or less per bet.
As far as other posters' comments about how to keep an even emotional keel, I'd suggest going to a bookstore and buying (or taking an hour to skim through) Zen and The Art of Poker by Larry Phillips. I don't agree with all that book has to say, but getting the mindset that folding often is a sign of strength, not weakness, was an important concept to me.
Website at
Zen and the Art of Poker
Good luck!
Dagrims