New mom and terrified of everything

I have a 2 week old son and he is

Everything to me. I’m struggling so hard with making sure he doesn’t get sick and constantly checking on him in the middle of the night.. SIDS terrifies me so bad I go some night without sleep just checking on him.. anxiety is so high right now I know I need to breathe and relax and trust in god to watch over him I just can’t imagine life without him