It's a little different when you see it for yourself. But you realize that it's mostly mental, psychosomatic. They could have made these changes on their own if they only believed in themselves. I could make the change if only I believed in myself.
Not off topic at all. I think the same. I too made drastic and vast changes to my lifestyle behaviour and personality. But I'm thinking now I could just as well have done all that on my own. I also wonder did I really actually do it for God? Or did I do it to gain love and approval from members of the congregation and elders etc. Peer pressure and the desire to conform can be incredibly powerful motivational forces.
I guess if one steps away from the pressure and need to please one will see what's really left.