When did you start travelling with your baby in public?

(I do not know what is the correct flair for this)

I'm a first-time mom. My baby is already 3 months old. I barely go downtown since my parents won't allow me due to the fact that baby might catch virus. I know it would be possible but other mothers told me to let my baby go out in public when the baby is past 6 weeks so he would have something to look on his environment. It's also good for me too since labor was hard for me. I always cry for no reason while looking at my baby during his 1st month. Then on his 2nd month, it got worst since december. I never got to go with them eating on restaurants and the reason goes the same. I am left alone crying while my husband comforts me and just let me stay inside while they leave. My post partum made me really anxious and seeing them leave while I'm left alone made me more anxious. I just keep crying and holding my baby while I feed him. I switched to formula because of stress and anxiety and afraid that my baby would feel what I feel. I am on stress eating right now because of those events. :( I don't think they help me recover from giving birth. They make it worst :( Now on his 3rd month, I don't know what would happen. I still cry because they often leave and visit relatives and I am left out. :(