Is slim fast for me?

Hi everybody been on weight watchers and lost 5lb in 3 weeks which is brill but going on holiday in 3 weeks to America and just tried on summer stuff and it's quite tight dont want to go out buying loads when I know I will be dieting. I am a gym member and go 4 times a week and was wondering if I doing slim fast for the next 3 weeks am I likely to lose much? I need at least 7lbs lost I think to get into my stuff. If not I'm going to have to do the extreme lipotrim which I didn't fancy doing much. Any help would be great

you may get your 7lbs in 3 weeks. If not just over youll be quite near it i think. Just go steady on the grub when you come off though!