It is tough after all the years of trying your utmost to be a great mother and loving every day of it. More so when I was the only responsible parent due to the father thinking his duty was to finish work go straight to the pub arrive home at aprox., 9pm demand dinner, walk through the door wack their mother around, wake children from their sleep crying. Helping out later in their life when I could financially do so, giving my daughter an old car which was very reliable, buying a house where I charged a reduced rent suggesting I was willing to do this for 3 years then my daughter and partner could take out a mortgage to buy. After 3 years they wanted to move away so sold the home then my daughter and partner stopped talking to me. Guess you can also do too much.