Stress Eating (HELP)!

My husband and I recently separated. I had to downsize my 3 bedroom house into one room for two people. I now share a room with our 4-year-old son. I stay in a constant state of exhaustion. I have an hour commute to work now so the days I work I am up at 4am and the days I'm off, my son has me up at 6am. The only time I get to myself is when I go to the bathroom to take a shower and I spend most of that time crying because I feel like I am failing as a parent. For the past month, I have basically been stress eating and eating my feelings. I got yelled at by the doctor because I have gained every bit I lost back. Depression is taking hold even though I'm on medication for it. Doc even doubled the dosage up because of the issues going on.

I did recently start back walking again but it feels like my heart is going to burst out of my chest when I do. I also have sciatica which acts up when I walk and my right foot goes numb sometimes when I am walking. I wish I could skip all that and just go back to feeling better or at least feel like I'm not going to keel over in need of oxygen when I walk! Haha. Not using that as an excuse because I am going to keep walking no matter what. In fact, I was dead tired last night but went walking with my mom after I got off work anyway.

Anyway, I guess I am looking for advice on how to manage my stress eating. It's like, I know I'm doing it but can't seem to stop myself. Half the time when I eat now, it's not because I'm hungry, it's because I just want to stuff my face and then feel awful after that for doing it. How do I break out of this rut!?!

I'd also kind of like to do a cleanse to jump start my healthy eating. Any suggestions on that? Do I fast or is there an over the counter cleanse you guys recommend?