Welcome here, I'm glad you came as you are going though a very tough time, not only having to worry about finances but also having those conditions BPD, ADHD and sadly an eating disorder -all of which require serious attention in their own right. Unfortunatly there realy is no hard and fixed timetable to becoming able to cope wiht these, however you are not alone.
I realise you husband is bearing a great load however one income rather than two -even for just a while -can be very hard. I'd imagine he is stressed too -may I ask if he has any support apart from yourself, a family member or fiend to lean on a bit for frank talk and care.
Many find themselves in this situation and I'd suggest seeking the help of those that deal wiht it on a daily basis. Depending where you live can I suggest you try:
Financial Assistance - The Salvation Army Australia
St Vincent de Paul (Vinnies) financial services
Anglicare financial help
It is a great deal of help to have experienced people on your side, both with advice, planning and possibly discounts or other more direct assistance. There is no need to be shy or feel you don't belong, they will all do wahtever they can, htey are there for peole like you.
Please let us know how you get on