hi Nicole

If you are having rapid mood swings. perhaps you really do need a good mood stabilizer and seeing the psychiatrist about this would be best.
With regard to the feelings of paranoia. You know your family members, and that they are not out to get you because you know from the type of people they are that they are caring and wish you well. And reminding yourself of this when you have these thoughts will give you the reality check. you need to help.
Definitely suicide is not the answer it would totally destroy the lives of your family who would never recover from the bad feelings and you really don't want to do that.

Having a consuming passion such as a charitable cause, or something that fired you up in earlier times would always give you a reason to go on and to have a meaningful life. Try to keep your mind busy doing things, especially enjoyable ones to take the focus away from feeling bad. I hope and pray you feel much better soon. Take care. God bless and best wishes from your friend Francis