Tips!! For a new mom

Here recently I found out I’m carrying a small bundle of joy and i am amazingly terrified that I will lose my baby. Do you have any sort of advice to not worry? (I had a early miscarriage in September at 4 weeks) I’m only 3 weeks 5 days now. and I’m so scared this pregnancy will go bad but I’m doing everything right. Taking my prenatal, trying to just drink water, I quit vaping. I’m just wanting my baby healthy and here