The diet to end all diets!

I weighed myself this morning: 118.5 kg (US = 261¼ lbs, UK = 18.66 st) and BMI (Body Mass Index) of 40%. I'm definitely a big boy!
Would you believe I have lost more than a tonne (US = ton) by dieting since 1954? I've been the biggest human yo-yo you have ever seen!
And almost every time I lost mass (US = weight) by dieting I would bounce back afterwards to a greater mass (US = weight) than I had been before I dieted.
Let's start to list out my enormous losses:
Nov-Dec 1954: lost 12.7 kg (US = 28 lbs; UK = 2 st) "be thin for Christmas!"
May-Jun 1955: lost 14.3 kg (US = 31.5 lbs; UK = 2.25 st) "lose mass for winter"
Oct-Nov 1955: lost 12.7 kg (US = 28 lbs; UK = 2 st)
Apr-May 1956: lost 15.1 kg (US = 33.3 lbs; UK = 2.38 st)
Sep-Oct 1956: lost 13.1 kg (US = 28.8 lbs; UK = 2.06 st) "be fit for Melbourne Olympic Games" (I only spectated though!)
Mar-Apr 1957: lost 14.8 kg (US = 32.6 lbs; UK = 2.33 st)
. . . you get the idea. In about three years I had already lost 82.7 kg (US = 182.3 lbs; UK = 13.02 st)
My Mum would put me on diets 2-3 times per year and I don't recall ever losing less than 2 stones. Sometimes I would lose well over 3 stones.
When I left home, I would put myself on diets:
The most memorable example: March 1973 my mass was 19 stones; September 1973 my mass was 9 stones . . . in six months I had lost 63.5 kg (US = 140 lbs; UK = 10 stones) . . . I had shed more than half my total mass. That was an excruciating 1,000 calories per day diet. I don't know how I did it for so long. A month later someone said, "I used to know a bloke who looked a bit like you, and rode a similar motorbike, but he was a great big fat bloke; Phil Smith was his name." Straight away, I started to pack it all on again to fit everybody's image of me.

So what is the Ultimate Diet?
I have bought a pedometer, and in the packaging was enclosed a small book called Walk Yourself Thin or something similar. My wife has loaned it to somebody so I shall give you full details in a future post.
In a nutshell, the book says you don't need to diet; you just need to walk as far as you can as fast as you can every day. So that's what I have started to do.
I shall keep you posted on progress regularly. At the moment I walk 3.2 km (US = 2.0 miles) in about 44 minutes.