I do not know what restrictions your religion puts on you: is there any possibility for you to study or get a meaningful job of your own? One of my neighbours, who does not have any gainful occupation, works two days a week for a charity organisation; this gives her life a meaning and lets her meet people. Myself, I take care of a small child every weekend, whose parents are deaf.
That your daughter has met a boy is good, if he is a nice person.
Women can sometimes get help from taking oestrogen after their menopause; this can help them feel better. But only taking pills, and not doing something about your life situation, may not be the best solution.
From your letter, I get the impression that you are depressed. Anti-depressive medication can sometimes help in getting out of a cheerless life situation. Such medication can make it easier for you to do the changes in your life which would make your life more meaningful.