You need to go and see your GP and see if you can get some help. Obviously your husband is not going to help but what about other family members - do you have parents? If you tell them that you are being treated for depression, aren't coping well and your children are beginning to suffer I am sure they will try and help. Do your son's school know about his stepfather leaving? They may be able to arrange some counselling or some sort of arrangement for him. If there are money problems then make an appointment with the Citizens Advice Bureau and see what practical advice they can give you - but most of all MAKE AN URGENT APPOINTMENT WITH YOUR DOCTOR TOMORROW. Remember, all this will pass and it will get better, but you have to go and ASK for help.