Yikes

Seriously I just don't get it. When I did weight watchers in Feb 2011 it was so easy for me. I lost 50 pounds. I went on a couple of vacations after that. When I go on vacation I eat what I want. I am a food person, and to me that is a big part of vacation. In one year I lost and kept off 50 pounds. After the trips I just have not gotten back into it and have gained a bunch back. I have gained back 20 pounds back since Feb 2012. Even last weekend I ate pizza and Ben and Jerry ice cream. Any ideas? I have tried since Feb to get back on it, and I don't know what is going on. I have not worked for 2 months now. I get more movement now then when I worked so it is not from sitting on the couch. I just have no urge to eat in the points. I just munch. Somehow I have to jump start this. I feel like I keep saying it, but still have not done it. I really need to do this. UUGGHH!