Yes, I am 100% sure that I will go to heaven.
3. God will let all enter Heaven who ask for forgiveness from what wrongs they have done.
How do we solve this dilemma?
But praise God that He sent his Son to solve our dilemma. "God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life" (John 3:16). He who believes in the Son has everlasting life; but he who does not believe the Son shall not see life, but the wrath of God abides on him" (John 3:36).
Jesus Christ paid our penalty and made the way to God for us by his death on the Cross. He purchased our salvation by the shedding of his blood. His death and resurrection made a new and everlasting covenant between God and humanity. He made the only way for God's forgiveness of our sins to remain just and fair as well: both our penalty is paid and our sins are set aside. Without Christ, our debt is unpaid and our sins remain our own. Without Christ as our savior, there will be a day we will have to pay for each sin we have committed because, as scripture says "the wrath of God remains on us (not on Jesus Christ)". Forgiveness will not be offered if you will not first turn to Jesus and have your penalty be paid. It's either He pays or you pay.
Jesus told his disciples, "I am the way and the truth and the life. No one comes to the Father except through me" (John 14:6). He did not merely point the way to God. He himself claimed to be the only way to the Father and the source of eternal truth and life.