Uber Frustrated!

Hello, all! I'm not a new face to myfitnesspal, however I am new to posting on the message boards. I figured today was a good day to change that.

I have lost a total of 33lbs to date (only 8 or so of those 'fell off' after I started logging on myfitnesspal), and have been hovering here for what seems eternity! I'm ready to push past this plateau and I need some input.

I lost those first 33lbs on my own. Basically the 'dont put so much food in your mouth and move more' diet was the trick. I started running every morning, and after a couple months I noticed my body seemed to get used to my 'routine' of what i was eating and burning off everyday. SO, I signed up for a Fitness Bootcamp. 3 days a week hour long sessions. I started last week and I LOVE the mix up in routine. I weighed myself and I was 2lbs heavier this morning from my last weigh in

Any advice/input is welcome!