JOBS: Vocational ADD and how to cope over the long term

So... I'm 40 and I've been married to my ADD husband for 15 years and I have lost count of all the jobs he has had, usually for somewhere between 6 months and 3 years.  I'm finally coming to the realization that I'm looking at a lifetime of him changing jobs (with seasons of unemployment which are super tough), no retirement, no college savings for our kids, no financial management (unless I do it alone and I'm not great at it and I do dislike it) and never seeing him happy vocationally.  Anyone out there have some good coping skills for this life I'm facing?  I love my husband, we have fun together, I don't TRUST him with money or less important issues (ADD, good intentions but not much follow through) but I also don't see a reason to divorce outside of wanting to find a more partner-like partner.  I would like to hear from people who have figured out how to cope and flourish in this sort of situation over the long term - Or tell me if I'm completely delusional to hope for a good future together.