Congratulations on 4 weeks. I wish I had some magic words to help with the sleeping and the craving but I am only on day 3. Just remember how much those first couple of days sucked. Do you really want to start over? 4 weeks seems like an eternity to me. I have never made it past day 7. You have made it this far so you have shown strength. Don't give up now. See if that one friend wants to ditch the wedding with you and go do something, anything else. Send a nice gift and card to wish the couple well.