When you stop or cut back on alcohol, the body has to switch its metabolism from liver conversion of alcohol to glucose, to other metabolic pathways. This often leads to carb/candy cravings in the beginning. Expect this, and only allow yourself a bit more carbs in the beginning, tapering off to a limited sugar/carb intake.
Lean proteins, veggies and some fruit and nuts.

This is our alcohol support thread with more information and
the support of others who have done this same thing:

http://neurotalk.psychcentral.com/thread104096.html
This is a long thread, but if you read some each day, you'll find answers to supplements, and other information that may help you.

The twitching is probably low blood sugar, as you try to stop the alcohol. This means your body is converting over from alcohol metabolism to regular food metabolism. Magnesium is one mineral that alcohol use depletes in the body, so soaking in some epsom salts in lukewarm bath water, before bed will calm those down. You can get oral supplements too, but avoid those with OXIDE in them. Chelated forms are called magnesium glycinate, carbonate, taurate, malate, or a delayed release form called SlowMag (magnesium chloride). Some find SlowMag easy to tolerate at one tab twice a day. This can reduce twitching considerably.