Help me not fear heaven/hell

[Nay_Sayer]

If it is impossible for you to sin how can you have free will?

God can’t violate his nature. Spoken to Moses in the 5 epic words in which He described himself: Moses asked who should I say has sent me?  God answered, “Moses: I AM WHO I AM”. In other words, God is defined by his nature. God can’t do sin, accept sin, overlook sin.
The sin nature is universal in humanity.  All of us have a sinful nature affects every part of us. This is the doctrine of total depravity, and it is biblical. The remedy is to partake in the divine nature offered to everyone. This new nature coexists with the old nature until physical death when the old nature becomes totally non-existent for those who accept the remedy*, those who don't will continue to have their one and only sinful nature eternally which is the referred to as the second death. 

By partaking in the divine nature, one can have free will without the possibility of sin; the new creation will be sin-free.

*Everyone or anyone who calls upon the name of the Lord by embracing the life, death, and resurrection of Christ Jesus with confident trust and firm persuasion will receive salvation (new nature, partake in the divine nature).

FSM can’t violate Its nature. Spoken to Maccarone in the 5 epic words in which FSM described Itself: Maccarone asked who should I say has sent me?  FSM answered, “Maccarone: I AM WHO I AM”.
FSM can’t do sin, Will accept some sin, overlook sin given a good bribe.
The sin nature is universal in humanity.  All of us have a semi sinful nature affects every part of us. This is the doctrine of total depravity, and it is Pastafarical. The remedy is to not be a total dick. This new nature coexists with the old nature until physical death after which we meet judgment.

Bless. RAmen