Jayjay, good luck with this.
I've been trying to drop just a few pounds in the past two months, and I'm amazed at how hard it has been. (everyone who says that as you get older it gets harder, and also, the closer you are to your goal weight, the harder it is)
While doing the research and counting numbers is all good, someone else mentioned just starting to 'eat clean'. Make that a life goal. I just don't eat certain things -- they're not part of my lifestyle. So, no fried stuff, no white bread, no cream sauces, limit cheesy/milky things, no beef, no pork. But, add veggies to each and every meal. Make fruits your snack of choice. Drink lots of teas (decaf) if you don't care for water. It's a quick, easy start
For 3 days, I get to part of a thousand other journeys.