So, personally, I believe that we are all predestined for salvation through the blood of Jesus Christ.  God chooses all of us.  Everybody.  He is not willing that any should perish.  He died for everyone.  He paid the price on the cross for every human being.  Jesus bore every sin of every person that ever lived, or ever will live--those who accept God's gift of salvation (through their own free will) and those who reject Christ (by their own free will).  However, even though all sin, every sin, has been paid for, only those who repent and accept God's gift of his Son as a sacrifice for their sin will receive salvation.  God chooses you, but you in return must choose Him to seal the deal.  There is a price for salvation.  Repentance.

2 Peter 3:9 says,  "The Lord is not slack (late) concerning his promise (to return), but is long-suffering toward us, not willing that any should perish, but that all should come to repentance."   That scripture says that God is still hopeful that all lost people will choose Him.  Which makes no sense if you believe that God has already done the choosing of who is going to make it and who is not!  Why would God be "hopeful" for something that isn't going to happen.  For something that he has already determined won't happen.  Hope means there is a chance.  God's hope is that you will accept his sacrificial lamb--Jesus.

That scripture makes no sense if God already knows who is going to trust Him and be saved.  And of course there is John 3:16 "For God so loved the world (everybody) that he gave his only begotten son, that whosoever believes on Him shall not perish.  Whosoever, not a chosen few.

Don't get me wrong.  If God wants to know who is going to reject Him (before they are born), God certainly has to power to know that.  He is God.  He can do whatever He wants to do.  I just don't believe in predestined damnation.  Which is what you have--unless God makes a choice not to know.

I guess what I am trying to explain is that if something is already determined, God would not be hopeful that others would come to salvation.

And God is hopeful.  He says so in his Word.  He hopes all men will repent and turn to Him for their salvation.  He is the author of it.  It's free.