Academic Appeal Urgent Please Help!

Hi, I am was informed of my academic dismissal from school and am trying to think of the right approach for my appeal.
I am centering my appeal on the issues at home that I felt had an effect on my grades. My brother has bi-polar disorder and schizophrenia. He is known to exhibit violent behavior and has threatened me and my father many several times. When I was away at college I was very stressed out about the situation at home and worried for my parent’s safety
I would like to know what my chances are of winning the appeal and being reinstated. Also what is a general outline of what should be in a successful appeal? I’m really stressed out about the situation and really need help.
Also I apologize if this is in the wrong category, it’s my first post.