ive already said, this ain;t the mags board, you will have to justify your posts on here, or expect a backlash.
My mate (ex forces like yourself) is a PT, been doing it for years and does pretty well out of it. From what I can gather, it mostly involves shouting encouragement at Lycra clad fat birds who work in the City.
But he learned it through experience, the hard way, not some snoty nosed lazy dole waller full of roids who has read a book. Personal trainers, ****s for ****s