Gastric Surgery/weight gain

I had it in September of 2009 and Im struggling with my weight going up and down.

I had gastric bypass 6 years ago almost to date. In the first five months I lost 100 lbs. Then for the next four months I lost another 60. Then life happened and stress. I slowly started gaining weight back. By October 2010 I had gained back 60 lbs. I went to my Dr., got back on track and started loosing again. Holidays came and I gained back what I lost. Start of 2011 I decided I was going to get back on track. Slowly the weight started coming off again. I worked really hard over the summer but when fall came I slacked and the the holidays came and I gained back about 20 lbs of what I had lost. I finally made a commitment to loose the weight. The fact that my high school reunion is this summer also helped. I joined MFP and have done really good. Since January I have lost almost 20 lbs. I thought GBP would be an easy fix but it wasn't. I still have to watch what I eat.