I am terrified of SIDS

Tori • Married with 2 year old mini me :) B/G twins due 4/2020
How do you ladies manage during the initial weeks and months of your baby's life? I am seriously so stressed out and terrified that my daughter is going to go to sleep and never wake up. I am so riddled with anxiety that It's difficult for me to enjoy this time that me and my husband are spending together with her. 
Please help.