Do you know about that kind of players that are just thinking are good for this and they aren't?
I guess the badbeat stories must stop and the best thing you may do is to change big things in your game. Try an extra-tight session ( like x mtt with 15minutes blinds and see how much you can resist in these tournaments....if youre out quickly from them it means you have another problem...of concentration)
Anyway, depends what youré playing ... but we are in here to just help you with some good advices.
Tell us more about your bad period and say in here what you THINK you made wrong in your game.