Can you please give me some urgent advice on this?

It sounds like none of that is your fault and I don't know why those people see that it is. The best thing you can do is ignore it. Every time something like that happens think of good thoughts. And as for the suicide think of everything you have to live for, even if you don't know it yet. The best part of your life is still ahead of you and committing suicide would take that all away. Just think about yourself and no one else. Good luck :)