Bluff, Bluff, oh why do I make these stupid Bluffs...

It never fails me that I make 1 stupid bluff in a tourney that costs me a nice stack of chips. Now theres nothing wrong with a big bluff, its just when I bluff when it doesn't make sense to. Either bluffing when theres absolutely no fold equity for my opponent, or bluffing on a board that wouldn't make sense. Did one of each last night, one cost me headsup in a double shootout 1st round, then 2nd I bubbled out of the final table in a 2tabler.