Hi there &
Being committed is what you need to be, indeed!
Have you thought about how you'd like to go about doing this? Eating? Exercising? Let us know! Or have a look under Diet Central for a few ideas of what other people are using. (BTW, there is even a Weight Loss Surgery area, and everyone there will tell you that it's not as simple as just having surgery.
It's a tool that they are working with, but it's not for everyone. They're a very friendly bunch if you'd like to talk to them!) You may also enjoy the 30-somethings for those closer to your age.
Whatever you decide, know that you can do this! Stick around & continue posting
Best of success!!!!