Invest heavily in learning how to take and use deep breaths. My oldest is 12 now and in a lot of ways the baby days are still here.
In particular I'd recommend a wall-powered snot vacuum. They will probably give you a bulb at the hospital. It sucks and should either stay in the birthing unit or just go in the trash. Someone will recommend a Nose Frida or something similar. Those are junk too but are better than the bulbs. The powered one will work much better than your lungs. It's not exactly like a vacuum cleaner, it's more like a water bong. The negative pressure draws the boogies through the water cup where you can just pour it down the sink. Much better than accidentally inhaling it because you pulled too hard or the boogers were thinner than you thought.
Also get that kid on a sleep schedule ASAP. Don't wait or allow other things (like co-sleeping) to replace the sleep schedule. It doesn't really take long for the baby to get it, but one of you will probably want to step in. I did, and I didn't think it would really work, but I am grateful that we took that advice.
Sad!