Some people do not understand the importance of free will and choice.
Whether those choices alter the course of human history or alter the course of your soul and character, it cannot be changed, for it is set within that passage of time and becomes history, your history.
Once a choice is made, that is it; you cannot go back in time and never go back to who you were.
It is fine, if you passed your tests of character, learned from your mistakes and became a better person.
It is not fine, if you failed your tests of character, never learned from your mistakes and never confessed, repented and atoned for your sins.
For example, even if Lucifer remembered what it was like to be in heaven, he cannot return to his past angelic self.
The choices he made determined his fall from the heavens and grace, down into the pits of hell.
Remembering who you were, does not mean it is who you are and most importantly, matters not the Judgment, because Judgement is based upon who you have become.
Who you have become is the culmination of your choices.
Your salvation and history depends upon your choices.
Therefore, choose wisely.
Note:
There is never a dynamic (uninfluenced) situation (where free will is intact) where a person does not have a choice, especially in deciding who to be in any given situation.