Congratulations on your lovely little baby 
I have 2 DC, breastfed them both for a year each, never used dummies.
It is hard, it really really is, but now my kids are older I'm so happy I did it the way I did.
This website became my Bible (so to speak!) in the early days [www.kellymom.com KELLYMOM]]
Also, there's a section on Mumsnet about feeding, lots of good advice there.
Your baby is still getting used to being in the big bad world, wants to feed lots to increase your milk supply and to feel close to you. It's totally normal and he isn't doing it to try to make you die from lack of sleep, although I know exactly that it feels that way.
All newborn mammals do the same, feed feed feed from their mums, humans are the same naturally too. It's just we're used to seeing babies being like dolls in society, sleeping in prams, quiet, dummy plugged in mouth.
If your DP wants to help then get him to help by doing housework, bringing you lots of water to drink and generally telling you you're a star.
After a few months your baby won't feed just as much and you'll get the hang of it more so you can do other things.