Weekly Weigh In

I am VERY frustrated. I watched my points last week and exercised four days, but lost nothing. I weigh exactly the same as I did last week. Don't get me wrong - I am happy that I did not gain. But I feel like I worked really hard last week, and I did not get the results I expected. I guess I need to try and mix things up this week. Maybe eat different foods or do a different exercise routine. Who knows?