need supporters :)

Hi I'm 21 and I started losing weight in march of 2014. I started at 194 lbs. My goal weight is to be 115 lbs. I've lost over 60 lbs (my weight fluctuates between 127-129) but I am really struggling with these last 15 lbs and it feels like nothing is working. Before, I counted calories and worked out occasionally. Since the first of this year I have been working out at least 3x a week and counting calories but find myself going over sometimes. Any help is appreciated.