First time going out postpartum

My friend invited me to her birthday party which she rented a mansion with a nice view but I’m debating whether it’s appropriate if I go as my baby will turn a month old. I would feel guilty for leaving her behind (it’s an adult only party) but at the same time I feel like I need to go out and distract myself as I’m going through a tough time in my relationship with my baby’s father and suffering from postpartum depression.

I guess I just need advice I want to go out and distract myself at least for a night maybe have a drink or two but I feel super guilty for going out without my baby