If it makes you feel any better at all, I have friends that go to a clinic that has everyone on 4 packets a day, no matter your weight. As long as you aren't doing 2 restricteds in a day, you might not have done too much damage.
Change is a journey, not a destination!
Higest Weight = 328 lbs
IP Start = 290 lbs (7/2013)
Switched to Alternatives = 221 lbs (1/2014)