Hi michelle, welcome to the board! I am doing Weight Watchers, but I know others who have been successful using slim fast when they don't have a large amount of weight to lose like I do. You can find support here no matter what plan you are using, just join us in the weekly chat thread at the top of the forum.
WTG on losing 15 pounds already, keep it up. I'm 5'6" and my goal is 145, as you can see I still have a looonnnnggggg road ahead of me...but hey, I think I'll get there this time.