Welcome here yellowrose. Hope you manage to keep this all under control, especially through this season. You seem to have a good understanding of your illness and its triggers and effects. While that in itself doesn't solve the problems presented with depression, it is a large step in the right direction.

Does your husband understand your illness and the ADHD that your son has? I've seen families where the spouse tries to be supportive but really doesn't understand. Some knowledge in that area can go a long way, if your husband is receptive to it. He may understand the stress of being alone with the kids all week, but he may think that your depression is just a "natural side effect" of that stress rather than realizing that it is a separate issue that greatly complicates dealing with things at home.

I agree that regular therapy can help you cope with these issues, especially during the holiday season. Maybe at some point your husband can join you at a session where the doctors can explain your illness to him and let him know what he can do to help.

A lot of assumptions in my ideas above, please excuse me if I am off base. But most importantly, try to take advantage of the knowledge, understanding and support that is available on this forum, and good luck and best wishes for getting through this holiday and maybe even hopefully having a chance to enjoy at least a little bit of it.