You don't need a slap flick! It can be hard for everyone but knowing you have actually got a condition can sometimes make it harder, I have always thought labels make things harder.
I suffer with depression (currently I've been suffering for 3ish years but suffered before )and I still often only leave my flat when I need to get gas and electric or milk.. I used to force myself to go to the gym because I kept getting told it will make me feel better, but I actually hate going unless I go to my normal class because the other people in the group are all over 50, and are so supportive with me. I go places on my own, but that's because I can't rely on my mum any more to take me places all the time, and I shop with my dad and sisters on a Thursday every week. I used to stay at my cousins all the time, just so I'd leave the house because I'd be going out with her. I know it's different for everyone, but like you said - you couldn't even leave the house to put the bins out and now you can drive yourself to your family's homes and take you son to nursery, that is an amazing step as it is!! The weight will come off, even if it's slowly. Slow and steady wins the race!
I don't think that made much sense but I hope you understand it! Xx
Kirsty