Restarting My Weight Loss Efforts

I have been on Spark for over 2 years, only to keep losing and gaining weight...never maintaining it. Recently, my weight went up to 175 lbs... definitely not good. What made matters worse was a month before my best friend's wedding (which was on September 21st) I realized I couldn't fit into my dress. That was exactly what I needed to jump start my weight loss efforts. Fast forward to today.... I have lost 8 lbs. I just need to keep up the great work and lose another 20+ lbs.