Here's a summary of your questions and comments:
"Is suicide the ultimate sin? I know of a few people who have committed suicide and I wonder, can those who have committed suicide find a heavenly home? This troubles me as I hate to imagine anyone in hell. I am so glad I have my Jesus."
First of all, I want you to know I am sorry for your pain. The pain of losing a friend/acquaintance to suicide is very traumatic. I want to remind you, Jesus made it a priority to befriend people who felt the kind of pain you're feeling, and to help them find healing. They included a prostitute abused by men, a leper outcast by society, and countless others who suffered from loneliness, fear, and rejection. Jesus was a friend they could count on when no one else seemed to care. He was someone who loved and understood them—just like He loves and understands you.