Paranoid

Over the course of 3 or 4 months this summer I lost 25 pounds. This was amazing for me because I never thought I would be able to do it. I started at 150lbs and now I am happily at 125. During the summer I had all the time in the world to focus just on the gym and eating healthy. I went to the gym just about 6 times a week every week and I ate healthy constantly. I also rarely ate over 1000 calories everyday which I know isn't good. I was basically obsessed with weight loss and thought about it constantly. I am now a sophomore in college and just moved into a dorm for the first time, so just the thought of being here stressed me out about my diet. Overall I think I am doing a good job with my diet and eating mostly healthy, but every once in a while me and my roommates get unhealthy food. Like yesterday for dinner I had a salad from moes (Mexican food) and then after I had a cookie with ice cream on it. I believe my calories for that day added up to alittle over 1200. Today I ate good all day so I could make up for yesterday, but then at dinner we all got ice cream sundaes. I know I shouldn't have, but for some reason I did anyway. Today ended up just at 1287. I also go home on the weekends and I usually go out to eat and get dessert once a weekend with my family. Now I only go to the gym 4 days a week Monday thru Thursday. Basically I am just constantly stressed about my weight and extremely paranoid that I am going to gain weight. My main question is will I gain weight now that I am not as strict about my diet. I honestly love not being so strict about my eating and enjoying myself a little. My family is also telling me the same thing that I will not gain weight that fast and I should enjoy myself. I just find myself thinking about it constantly and always thinking I look like im gaining weight. This is more or less a vent than anything, but will my change from being as strict as I was before to now make me gain weight?