Poor little guy - not an easy way to start out, that's for sure!
Some great advice already. Just take it one step at a time. Make sure he's getting full feeds when he nurses - really emptying your breast. You can use breast compression if he starts to slow down. Are you using both sides? It can be helpful to really stimulate your production and for weight gain. Don't worry about not being able to recognize his cries - I didn't for MONTHS! His nursing should settle down after a bit - once he's put on some of the weight after the hospital, he'll probably stretch out his feeds a bit.
To get started on EASY, you're aiming to feed after waking and not to sleep, if possible. Remember too, that his activity time will be fairly short at this age - probably less than an hour, I think. So before that hour is done, start the wind down for a nap - or earlier if he starts yawning or rubbing his eyes. That can help with recognising if he needs to nurse too - if he's been up for a while, it may be more likely that he's tired. If he gets good sleeps during the day, he'll sleep better at night. Monika's right about having a quiet routine at bedtime too - some babies love a warm bath. Do you swaddle him? He might find that comforting at night - make him feel enclosed and more secure. White noise might also help. There was probably more light at noise in the hospital and they often tend to swaddle there (at least here they do), so the idea of a nightlight (maybe) and some white noise could be reassuring - you could try a fan or humidifier or static on the radio.
