If you REALLY learned from it you're a better pilot because of it. The school of hard knocks can suck at times, especially when you're the participant instead of reading about it.
It might be a good TMAAT - "embarrassing, humbling, and beneficial. It gave me insight into pitfalls and made me wiser, especially after losing three friends with somewhat similar circumstances. My commanders ultimately realized it was a harsh lesson learned and my career progression continued with upgrade to mission CC and IP qualifications."
It can suck telling honest stories of one's failings, especially when one has high standards/expectations. Learning is the key lesson. We all know guys who havn't learned from their previous lessons. IMO that's the guys NO ONE wants to hire.
Good luck. Be honest.