There are few 12-step programs that abstain from sugar and flour, such as CEAHOW and OAHOW. There are also diet plans such as Sugar Busters that abstain from Sugar.
I would recommend finding a local CEAHOW meeting in your area. There are also phone meetings if you don't have a local group in your area. Visit: http://www.ceahow.org/
12-step programs are nice because you have support,you are not alone.