Sounds to me like you are betting correctly. Table selection/conditions will change this. Sounds like you were on a tight table that was respecting your raises and pot size bets. Sometimes you will play where it will be near impossible to bet out some maniacs. Then you'll have to be all in to push them around.

Under those conditions, you can potentially make a little more by stealing some pots w/ a bluff. Losen up your starting hands, or just be satisfied winning small pots.