Well, my husband did MF too for a few months and although you'd think it would be easier with him on it, it really wasn't. He did great and I was still cheating all the time. I know exactly how you feel, when you talk about giving up food for six months. It shouldn't be so hard or so scary, but it is. For people like us (I'm assuming a lot here, but it sounds like you are attached to food just as strongly as I am) I think there is no other way but 100% compliance. Because that first taste leads to so many more.
I don't have a problem with wanting to eat what other people in the house are eating (kids/hubby). Usually they are eating much healthier things than I would be craving. We all have L&G for dinner, even when no one is on the diet but me, so that part is easy. And we don't have too many snack foods in the house when I'm dieting, mostly pretzels and they don't really appeal to me. It's sweets that call my name. My big problem is junk food and fast food/take out.
There's just no easy way. The plan is simple, but it can be scary to think about living life without certain foods. Although it's not the right way to look at it, sometimes I find it helpful to tell myself I can have whatever food I want after a certain amount of time or number of pounds lost. It can help you get through the first couple of weeks, and then by the time you get to the point that you planned to have a treat, you usually have the strength to resist because you are seeing good weight loss and feeling so much lighter and happier with your healthy choices.
I was successful on this plan once before, so I know it can be done even for someone who can't imagine life without cake and ice cream. I just let myself use pregnancy as an excuse to eat what I was 'craving' and blamed it on the baby. Motivation is key, having a goal that is attainable and really gets you going. Spend a little time thinking about why you want to lose the weight, and be sure to have something to look forward to that isn't all the way at your goal.
I could go on and on, but the bottom line is (I am living proof) nothing will work if you're not willing to put in the effort. You sound willing, but understandably nervous. I can promise MediFast will not let you down, as long as you don't let yourself down. It is really exciting to watch yourself change during the process. I hope you start soon - I promise you won't regret it. And if someone like me, who has struggled for almost 8 months trying to get herself going, can endorse the plan so vehemently, you know it must be good, right?
I have failed myself, but the plan is ready and waiting for me, and I know the weight loss will come when I care enough about myself to stick to it.