#1 - I did it because I needed the extra push. I needed the extra help with controlling myself, and it certainly does what it is supposed to. HOWEVER. I struggle hard mentally, because my brain still talks me into eating the way I used to, and makes me push my boundaries. It honestly makes me feel like such a failure...
#2 - YES. I would be lying if I said I didn't want to quit, or have regrets most days. But having the NSV, and seeing the numbers go down on the scale, it helps.
Best of luck on your journey, I have faith you will succeed.