Please help me....In desperate need of expert advice

I checked a couple of days of entries in your diary.You're not weighing your food.Or at least not all of it. I see entries for slices of bread,slices of cheese, pieces of this or that.Do you weigh each bread slice? I know mine differ. 2 slices could be anywhere from 44grams,to 58grams. For eggs you use an entry for medium. Medium could be 50grams or 45 grams. I had cans of soup that said they were 560ml and when weighed they were over 600ml. All this in the course of a day add up. Do you weigh oils, ketchup,mayo, things like that? If you get the tracking In order,i'm sure on 1200 you will lose weight. But right now you're underestimating your intake.

edit: i went back a bit further and there are also days that are half filled, and dates where you went over your goal. Couple that with the inaccurate entries/improper logging, and with perhaps an overestimation of your exercise, and it's easy to see why your weight loss stalled.

I'm going to disagree a little bit with some previous posters telling you to weigh your slices of bread and individual eggs, and here's why...if you were in the ballpark of a deficit, you'd be seeing something of a downward trend. You say that you're not, which means that we're missing something big. With your stats, it should be relatively easy for you to hit a deficit, even if it's not exactly where you want to be. For the most part, you need to look at weighing individual slices of bread when you're very close to your goal weight (for example, if you're 130 pounds and want to lose 5 more) or if you're really trying to hit a certain rate of loss (if you're losing 0.3 pounds on average per week and want to lose 0.5). Start by looking at the things that will make the most difference and have the most impact first, find your deficit ballpark, and then fine-tune from there. Weighing individual slices of bread is a fine-tuning issue.

If it were me, I'd start by exporting my calorie data into a tool like Excel and figuring out what my actual average intake is. Delete any partial days so they don't interfere with your calculations, and then figure out what you're actually eating. Sometimes that magic "1200" number looms so largely in our heads that we don't realize that the days we go over have an impact on the average.

Then, I'd look at my logging, specifically for places where I'm missing things that have a big impact (fats and calorie-dense foods). I don't weigh slices of bread, or individual eggs, or pre-cut slices of cheese, or salad greens. If you're off by a couple of grams on those things, that's not going to add up to enough calories per day to kick you out of a good deficit, if you can get yourself into one.

I did notice that you're using entries for prepared dishes sometimes (for example, scrambled or fried eggs) where you should be entering all of the components separately (the eggs + the oil/butter + the milk, if you add any). I'd make it a rule that anything that is calorie-dense needs to get weighed and entered as a separate entry.

Ultimately, your body is telling you that you're not in a deficit. That sucks, but that's the story behind the results you're seeing. Most typically, that's because of some kind of data-entry error (overestimating exercise, underestimating food/logging incorrectly, or not logging everything in total). Since you should be able to lose anywhere in the 1200-1600 calorie ballpark, smart money says it's a combination of incorrect logging and not logging completely.