Well, here I am yesterday - 296 pounds lighter than I started. I am still a work in progress, but I think my personal trainer is really helping me... and I need all the help I can get!
What a beautiful motivation - your daughter. Having you as a full time father has to be one of the best things in her life. The stability you now provide will help her to be the wonderful person she is destined to be.
Good luck with achieving your goal!