Hiya Spoonhead..
I am full of respect and awe for you... You are doing the right thing..
There is a chap living near me who has gone from a man mountain to an average Joe in 4 years although I think he was a lot larger than you.. It has taken time but a goal is a goal and you know what they say, a long walk starts with a single step..
This Forum should be useful to you, I'm sure the members will support you if / when you need it. Have you considered writing a blog to plot your progress ? Keep a diary of your walks and images of the locations ? We do love to see pictures of a Sun set or Sun rise Or just an interesting view or tree, You never know, you might be the new David Bailey..