I don't know. If I am one who was predestined, it would be irresitable. But just as people can reject God's grace, they can accept it.
And no, my choice does not make me my own savior. Like Paul, "I am redeemed by the blood of Christ, I trust in him alone for my salvation, and, as Scripture teaches, I am ‘working out my salvation in fear and trembling’ (Phil. 2:12), knowing that it is God’s freely given gift of grace that is working in me."
God does not prevent anyone from accepting his grace or following him or anything else having to do with one's salvation.
You are not making sense! You say he has predestined many to hell, so God prevents them from accepting His grace!
I said nothing of the sort. Go back and read what I wrote.
God does not prevent anyone from coming to Christ. Man's sin nature prevents everyone from coming to Christ. If you come to Christ it is only because God changed your nature so you would.
Who gets the final say in where you spend eternity, you or God?