Help please!! Bad start-up, car dies if i hit the gas, and has no power

[planksta]

alright its really scaring me, my ti is having a serious problem starting up, i have to turn the key and let it crank for like a minute or two before the car turns over, and then when it starts the whole car like shakes and the rpms are super low and then the car just dies, then i will crank it again and it will start then die, and if i so much as tap the gas the car dies, once its finnaly started i have to let it sit for a good 5-10 mins before i can get going, and it feels like it has no power i mean it is running really slow, it takes me forever to get going and it always feels really boggy and weak and when i hit the gas there is somewhat of a delay, i have no clue, i do know that my exhaust is pretty rusted and looks like it needs replaced but im not sure, can anyone help me please