Athrawes, I've only read your first post. Just wanted to say that it is extremely hard in these early weeks. Nothing can prepare you for how hard it is.
But. He will change. Before you know it he'll be changing far faster than you can catch up with - you'll have just about worked out where he's at and zoom! Next phase! Keep up, mummy!
Things do get better. At the moment just go with what works for him, discard what doesn't work, take things gently and be kind to yourself. Eat lots of lovely foods - but make sure you balance cakes with smoothies.
. Sit and watch all the lovely little facial expressions he makes, listen to all his schnoozly sounds - make it almost like a meditation on your lovely boy, as that's a good way to help you slow down and go at his pace.
Apparently for the first 3 months they are essentially like a foetus, so they need lots of cuddles and closeness to mummy - do you have a sling?
Why don't you post back on this thread in about a month's time - or, at least, look back at your posts in a month (and then another month later again) and you'll be able to reflect on how much things have changed.
In the meantime, just take our word for it.
Best of luck.