(HUGS) we found these things helped us with sleep (though in saying that around 6 weeks DS got reflux and we were AP city for a while with not a lot of sleep)
White noise or music
Swaddling
Dummy
patting - but on the bottom not the back (and shhing sometimes) If he doesn't like that you can try pressure on him in the cot
rocking chair
If you are finding him hard to calm down we always found (when its not ick outside) that taking him out in the fresh air all wrapped up helped calm him down...not sure why! I also found we had to hold a DS relatively firmly and on his side against my chest - almost with his face in my armpit/boob with the dummy when he got really worked up to get him to feel safe and relax.
He is still so little you are doing a great job!!!
hope this helps a bit, i'm sure the other ladies have some good tips!