First time mom and feeling overwhelmed

I just gave birth and I feel stressed about taking care of a newborn alone when my hubby went back to work. I really don't know what to do if the baby cries, or feels sick or other things that might happen. I have attended a talk on how to do basic care for a baby but I still feel not so confident. My friends who have kids told me I will learn along the way and get used to the routine of taking care of a newborn and maternal instincts will kick in. But I am not so sure and feeling worried that I can't give the best care to my newborn baby. Please help 😭#FTM #advicepls #firstbaby #pleasehelp