Again, you're counting things you have not done yet. It's simple. You haven't been out of division 4. All I was saying was 6th man has, doesn't matter how long it took him or anyone he's done it and you haven't. Also, you have a U21 trainee and honestly, you can get those pretty quickly it doesn't take 27 months.
It would just be more impressive if you could back it up is all I'm saying. Good luck. Once you get out of D4 THEN you can say you made it out.. train a U21 player and THEN you can say you had a U21 player. I'd continue to build that arena though before thinking about promotion. Arena is fairly small for division 4.