SIDS anxiety

I have had so much anxiety since my baby has been born. I usually am an anxious person but after having her I think I got PPA. I haven’t really spoken with my doctor about it yet but I think I should at my next appt. I have been so feared of something bad happening to my baby and especially Sid’s. I think the reason for it is because it’s just such an uncontrollable thing that can happen. Does anyone have some piece of advice to ease my mind a bit or things that you do if you dealt with the same thing?!