Letter of Explanation Help!!!

hi! i’m well on my way through my SCAD application, all i need is to complete the SATs and send my score, and then send a letter of explanation. the latter of which i’m struggling with… i need to write the letter to explain the two year gap between highschool and my application. i graduated from highschool two years ago and have attempted community college twice and never finished a semester, so this will be my first official year in college. i’m not sure how to format this letter and what tone/level of formality i need to be using in it. :^( does anyone have any tips for me? this is really going to help me strengthen my application, it’s very vital!!!

Be honest and straightforward. Described what you learned from your failure and how it will help you succeed in the future.