Barbee... I believe what you are going through is normal "cold feet" stuff that everyone experiences before a major life changing event. I am due to be banded in TWO DAYS and also have the jitters. I started the 'program' in November and have already lost 46 lbs... sounds great, but now it's got me wondering "can I do it without the band?" I haven't been able to for 40 years, so what makes me think I can now. I know that this tool (the band) will be life-changing and will help me from slipping back into old, bad habits.
Know that you are normal for feeling this way, but remember what made you consider the band in the first place... you know you need help and the band WILL HELP!