Rhabodomyosarcoma?

What?  I have what?  It is malignant?  That means it is cancer.  I am going to die right?  I mean my dad died from having a sarcoma, so what will stop it from killing me?  Faith?  But I don't think I have any faith right now.  God what have I done in my life to deserve this?  I mean I have tried to live by your commands and lived a good life.  I have accepted Jesus Christ as my savior.  So, then why am I now afflicted with one of the most rarest forms of cancer that affects adults.  This is a child's disease.  So why do I have it?  Is God punishing me for something?  Is He trying to get my attention?  Will he heal me?  Will he have mercy on me?  Will He really let this thing kill me or will he intervene just in the nick of time to save my life?  I feel so.......