Write it as the final. Writing anything as a draft to piece together later is inefficient; it requires the same level of depth, if not more, that it took to come up with the drafted notes to pen the complete answer later. Later never comes, complete it now.
A pill won't clear your acne, a workout won't make you fit, a conversation won’t end your anxiety - a habit is chipped at each day until the sculpted isn't the sculptor.
You look back to when you were 12, what a fool. You look back to when you were 20, what a fool. Is there ever an age that you can reflect on and not think this? No, because you should always be growing.
Being embarrassed at your former self means you’re doing something right.