Anxiety about sleeping baby

I'm a first time mom and I been so anxious about bedtime almost every night since I been home from the hospital. And I can barely sleep when he sleeps because i sit and watch him to make sure hes alright. My anxiety has been majorly high and I try to ease my mind with the baby monitor on my end table and watch it until I fall asleep but I still have alot of anxiety. I'm scared hes gonna spit up in his sleep or I'm not gonna hear him crying or waking up or even rolling over (even though hes still to young for that atm) I talk to my psychologist next week but I'm trying to occupy my head during the night. Just so anxious and my mom tells me I'm a hover mom because of how paranoid and anxious I get. My sons only 15 days old. Does the anxiety get any better😟😥