Just cannot seem to get control of my overeating

I am gaining weight, depressed and want to stay home all day. I try to get out of the house for at least 15 minutes a day, because I know that is good for me. I feel guilty because my son plays video games all day. I try to get him out of the house, too, but he is happy as he is. I need a pattern change, like a pattern interrupt. I want to overhaul my life, but I don’t have the energy.