A few comments:
(1) Although TV holdem is exiting to watch, its probably not good to develop strategies from. They tend to only show you the exciting hands and you might get baised towards loose/aggressive playing.
(2) Success at poker is all about the strategy you have. To determine if you have a winning strategy: a) Clearly understand you strategy, 2) Play lots of games (I would suggest online). After 1000's of hands (online) using your strategy, you should know if its working. If its not, identify an area to change and play more games.
(3) I wouldnt bluff at your level. Even more, I wouldnt bluff out of desparation. You will always lose out (in the long run)