Scared to get excited 😓

Am I a terrible mother if I'm not excited for my baby? I'm 37 weeks and though I'm excited for the life I'm about to start, I'm afraid to be too excited about his arrival. I'm terrified something is going to go wrong. Like, I'm afraid he won't make it, or I won't make it, or he'll get taken away by CPS. (Backstory on that, I smoked weed per dr recommendation for nausea but around 30 weeks I quit smoking because I didn't want anything to happen. I have an irrational fear that my dr is just gonna throw me under the bus since it's not legal here, she might not admit she recommended it). I know it all seems far fetched, but I'm truely scared something will go wrong so I can't bring myself to be excited 😭😭 how can I get passed this?Â