[Frumanchu]

When you stumbled and fell into sin last time, was that God's will?Did He will for you to commit that sin?

Was He compelled by some external force to allow you to sin? What He helpless to prevent you from committing that sin?

[PetroniusMaximus]

"Was He compelled by some external force to allow you to sin?"

Nothing is "external" to God. "For in Him we live, and move, and have out being,"

"What He helpless to prevent you from committing that sin?"

I do not understand your reference to "helplessness".  Are you aware there are certain things God will not do?

James 1:13
Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man: