I started calorie counting when I was about a year out, and still do it at five years out. It's the only way I can keep on top of my weight (although not everyone likes this method - some find it a bit obsessive. But it's worked for ME). I can maintain my weight if I stay within the 1500-1700 calorie range, but this is going to be different for everyone. To lose, I stay at the low end of my range (or under) most days. If I go over 1700 too often, my weight starts heading north.
you might want to start tracking what you're eating in something like My Fitness Pal (although there are other decent apps, too), just to see how many calories you're averaging. You'll probably have to do it for a week or two to get a good average, since some days you'll eat more than others (as we all do...). Then try to cut your average by 100 calories. If after a couple of weeks you're not seeing results on the scale, cut another 100 calories. Rinse and repeat. I find it difficult to drastically cut my calories, but if I ease them down like this, it's much easier to adjust. At some point, you're going to reach your sweet spot where you're losing again.
btw - I still count protein grams, but I don't count carb grams anymore - but some people have to because they're very carb sensitive (I'm not particularly carb sensitive). For me it's the protein and overall calories at this point.