mfah, it depends.
I assume, losing a couple hundred bucks wont kill you, and that you are tryign to improve at poker.
Well you friends are certainly taking more chances and that's why they get paid off more.
Doyle Brunson said, "You have to give action to get action."
This means that if you play super tight, people, even the bad players, are going to realize that and always assume you had a good hand. So this means you wont really win any huge pots unless you have a big hand over big hand situation.
It isnt bad to be really tight. However, you can actually take advantage of your image by bluffing. You're bluffs will be much more successful than your friends because of your tight image.
Now I'm not talking about a crazy complicated bluff. Here's an example.
You pick up AQ. You raise to like $10 and get two callers. The flop is T43. You bet $20, and one guy calls and one guy folds.
The turn is a king. This is the key card for you... it is a scare card, because it is an overcard to the board. This is where you bluff. Look at the texture of the board... does the guy have a piar or a draw? If you started with $100, you should have $70 left... the pot is also about $70. So go ahead and shove all-in.
Now say the guy has QT or JJ. It's tough for him to call if he realizes you are very tight. If he has a draw then it's incorrect for him to call a pot size bet (some people will call anyway).
I mean sometimes buddy will have a set like 44, or KT and hit his two pair on the turn and you'll get stacked.
I can talk more about this stuff, let me know if you have any questions.
A well-timed bluff can make a big difference to a reall tight player's wins.