What is permanent success? La ilaha illallahu Muhammadur-rasullullah (sallallahu Alaihi wa sallam)
The real you is your Soul not your earthly body. Soul is real because healthy people with healthy organs suddenly experience death regardless of age known as Sudden healthy heart attack death or Sudden death syndrome. (Look it up in Google)
islam began with Adam alaihi wa sallam and completed and finalised with the final messenger Muhammad sallallahu alaihi wa sallam.
islam has deterrents such as no alcohol no drugs no sex before marriage and so forth.