How To Withdraw From Adderall?

My daughter is 54 and has had ADD probably all her life. She is taking Adderall. She is in a bad marriage, does child care in her home. Her husband goes to work every day but is an alcoholic, drinks heavily on weekends and after work. She needs the money from child care for their living expenses and cannot do child care without taking Adderall. I use to be on diet pills (amphetamine) and told her about my experiences. I have been free from them since the early 80 s. I tried to tell her to get off of them but she got very angry with me. I am concerned. What do you suggest?