New to MFP!

Hello, my name is Paul and I'm new to MFP. I'm 38 years old and live in SF Bay Area. I have been overweight since I got my driver's license 21 years ago. It's strange for me to think about how long I've been overweight. 20+ years just fly by. I feel that I know exactly how to lose weight, but I never do what is required. I am constantly preparing to start a diet and tomorrow is always my start date.
My highest weight has been about 250lbs. My current weight is 227.5 and my goal is 200. I started Weight Watchers a couple weeks ago, but then found MFP and I've found that I much prefer the MFP site. My plan is to track all of my food, gain friends who will keep me tracking and join groups that require a weigh in. I swim twice a week and do Fitlite circuit training twice a week. I recently bought a HR monitor so I can figure out exactly how many calories I'm burning during my workouts. I plan on eating all my calories burned and seeing how that works.
I been feeling very motivated the past couple of weeks and am excited to continue my weight loss adventure! Thank you for the site and all your support.