The strategies always change depending on whether you play MTT, cash or SnG, and it also changes depending on the opponents. If the table is tight you play one way, if there are maniacs at the table you wait, if there are very aggressive players at the table you try to be even more aggressive in your best hands.
Also the most important thing is the game in position, whether you have position or not.
I think that with respect to what you comment, what you have changed is some of the aspects of your game from how you played before.
To make more bluffs is not to change the strategy, because the bluff is a game situation that in general is chosen at the precise moment to do it.
A possible strategy could be to open more hands in positions than before. Either make 3 bets or 4 bets when you didn't before. Or work more aggressively a bubble when you find yourself with a good stack.
I also believe that whatever the situation, changing to improve your game makes you an outstanding player.
Greetings
