One thing you may wish is to leave all the bad things you have done behind. This desire too can be granted. Jesus talked about a spiritual re-birth. This means completely changing yourself, and making yourself more and more perfect (more like Him). As you do this, you leave your old self, and your old sins, behind. How can they still be yours, when you yourself have completely changed? If you are no longer the person that committed those errors, then what point is there in holding you responsible for them?
God has said that He will forgive our sins - if we turn away from them with a penitant heart (i.e sincerely detest sin). And why should we doubt this? A human father will surely forgive his children as they grow and learn - and the grown man is in many ways a completely different person to the child. Certainly, the child as he grows will learn what is good and what is bad, and if raised well will turn towards the good. What use then the father in constantly reminding the man of the errors he committed as a child? Of seeking to punish him continuously for old errors and behavours which have now been left far behind? A human father instead of dwelling on the troubles his child caused him, would rather take pleasure in the man his child has become.
If a human father can do this - then how much more a divine one, whose love and forgiveness far exceeds any human? So let go your guilt for sins and errors that you have left behind, instead focus on eradicating any remaining ones. And then, at the end of your journey you and your Heavenly father can at last be close to each other, in heart and in person. As you each will share the same desires and will - once you have developed fully into complete manhood (or womanhood, as the case may be) - and can stand independently beside God, as two people of a like mind.