Am I destined to lose my mind?

Sometimes I feel as if there is a time bomb that can go off in my head at any minute. My Mother was bipolar-maniac depressive, my niece is schizophrenic, and now, my little sister is losing what's left of her mind. How do you combat odds like that? I think they want me to go down to Caldwell and talk sense into my sister. She sits in my Mother's old house with no electricity all day long. If her so-called husband comes to get her, she heads right back down there. I'm sure she is talking to my dead Mother. I don't want the drama. I don't need the drama. Sighs.