My anxiety is killing me...

My anxiety has really gotten worse after having my daughter. I'm so terrified of everything including losing my daughter. If she's sleeping on my bed, I have scary thoughts that she's going to fall and die. If we're in the car, I always pray we don't get an in accident because my baby can die. It's scenarios like this that cross my mind every single day and it's killing me slowly. I'm so scared to lose my daughter and I don't want to feel this way. I constantly wake up a night and check if she is breathing. I don't want to sound like a maniac but I am. I don't know how to control my fears. Every time I watch her sleep, a part of me wants to cry because I ask myself would I do if didn't have her.

Yes, I do have PPD and will be seeing a therapist in a few weeks. But how can I make myself feel better? How do I stop from thinking something will happen to my daughter. She's 8 months old and healthy. The thought of not having my daughter just tears me apart.