black smoke, press gas to start

Bad smell inside like bad gas and shacking at a stop when idling then dies black smoke from muffler having to press the gas just to start the car every time and a smell like rotten eggs inside car after pushing gas then when sitting at a red light or idling for to long not even two minutes it shakes and dies like running out of gas ive changed the spark plugs and fuel filter no change and it uses a whole alot of gas because of having to press the gas so much and the battery dies a lot had to get another one