hi guys fairly new to poker on and off for bout a year but seen to be ok at sit n go's but lots of times i make the bubble and start attacking short stacks i always get busted it really frusrtating as in most tourneys i do ok bubble cash ect am pushing button cut off wif  short stack  flop comes  turn  river  this kinda crap seems too happen quite a lot they either double up or bust me ane tips plzzz tilting worse than the tower of pisa