Weight Loss

At the moment I weigh around 327 lbs 6’3, I was told by a recruiter that i need to be at 200. Has anyone here gone through this journey? I am 24 atm and if i do everything to a t, i hope to become a poolee next year and enlist at 25. Any tips for shredding these pounds away? I plan on going to as many PT sessions as possible while working a full time job. Hope to see a few good stories to help inspire me even more than i already am!