Repentance is optional?
If I am a theif and I like to steal, I feel no compunction nor academic reason to stop
Repentence is coming to the realization I'm wrong to steal (a change of mind .. direction)
Repentence alone does no good unless you direct your repentent heart and desire(s) towards someone that can help you FROM where you are.
If you have put enough faith in Jesus that you believe he has the power to save you, that is repentance enough...