I think I may be hurting my baby

I had my baby almost 7 months ago. I’ve been diagnosed with depression and anxiety at the age of 14. I don’t like to go out or make plans with people all I want to do is be home with my baby. People say I’ll get depressed again but honestly it’s just the best feeling being next to my baby but I feel like I might give her separation anxiety later on down the road. We only go out on the weekends with her dad since he comes home tried during the week. They say it’s not normal to want to be around my baby so much they say I need a break from her once in a while but she’s a very calm baby. If she starts to get frustrated I’ll just read her a book make faces talk to her and she’s happy. Is this a mental illness?