I would suggest being honest with your daughter about how you're feeling.

Certainly this is just my perspective, but I think if a person has never had to support themselves financially he or she will never learn how to take care of themselves. What motivates me to manage this illness, go to work etc. etc. is I don't have anyone who will support me financially. It's a strong motivator when a person has to rely on themselves (diagnosed with bipolar or not).