Women in their 30s or 40s are going to have kids half grown more often than not, unless they are business oriented, or career minded. Women at that age have heard all types of game and have been fukked or fukked over by every type of dude.
So in order to get at those women, who have to appeal to their vanity, compliment them without simping and keep it moving, next time she sees you, make sure she sees you making another woman laugh, because women get wet over competition.
Dress like you have a dollar in your pocket, even if you dont, because women that age like it when men have goals and dreams. Don't ever talk to them in a way that will remind them that they are older.
Ask some of them if they would like to be in study group for a test or something, try to present yourself has having value to the group, try portray intelligence without being an azzhole or nerd. Older women love intelligence.