So he controls the finances, and you don't work.
Is he paying into a pension for you? Does he have life insurance?
Does he give you an allowance or housekeeping money, or a credit card? Is your name on any accounts? Can you save nest eggs?
Have you discussed savings and investment plans together?
Have you discussed a backup plan for if he has to stop working?
Do you keep up workplace skills by volunteering or training?
Are you in touch with anyone from your former workplaces or your old university or college (if any)?
How would your husband feel if you wanted to do a part time or online or long distance low residency degree or evening course or qualification for personal interest -- a degree, an NVQ, some modules or MOOCS (online open courses)?
Are you on meds or in therapy for anxiety or depression?
Would you consider talking to your GP about low mood or self esteem? Could you go to a peer support group?