How Can Anxiety Disorder Be Treated?

My 90 year old mother has been on Paxil for anxiety for years. When she would decide to stop taking it and/or wean herself off of it, she would become belligerent and behave badly. She lives in AZ and I live in Ohio. She recently told me my brother, who lives in Chicago, told her she could take it to sleep better at night. I told her mixing the two is not a good idea. I told her it could be additive. My brother told me years ago that I pop them anytime I feel anxious . He has done cocaine and who know what else. It makes me sad that my family are drug dependent and have anxiety disorders. My mother recently wrote me a note and sent money. She is so insecure from getting on my bad side due to giving advice and demanding I change my life. She recently told me to sell my 2 horses and that I work too hard on our 5 acre farm. Her reasoning skills are very limited, even when she was much younger. It s a vicious circle because my mother and brother have beat me up verbally over the phone and in writing. I just want to be left alone and be as happy as I can be.