Sids worries

I hate worrying so much about sids but I can’t stop. Before this it was miscarriage and now I’m terrified of sids. Our baby girl was born 8 days ago and I find myself waking up all night and checking her bassinet to make sure she’s still breathing. My husband doesn’t seem worried at all. I practice safe sleep and do everything I’m supposed to but still. It can’t be controlled. I love her so much and just want her to be safe. I don’t know how to calm myself down about out this. The risk goes down I heard after 6 months. I don’t know how I’ll make it through then.