Good luck with the diet CJ, you need to be strong willed and joining a club will help, remember to keep an eye on the high GI foods
It is best to start your day with fueling up on low GI foods, such as porridge as it has a slow release and will help prevent unused carbs being stored as fat and will also help prevent food cravings between meals and drink plenty of water, at least 2 litres a day and more if you take up exercise, which I recommend you do,
start doing some walking and buy a pedometer so you can keep a record, they can become quite adictive and you end up increasing physical activity.
The other thing that could help is keeping a daily journal of the food you eat and the exercise you do, the calculation are not hard burn more calories than you eat and you will lose weight.
You'll find the weight will come off easy to begin with as you have a lot to lose.
You have a massive BMI rating and really need to reduce this to prevent other medical problems
http://www.nhlbisupport.com/bmi/
It would be good idea to get measurements not only of your weight but
Waist
Blood Pressure
and BMI, even body fat contents if possible.
They will all give you individual goals to achieve and give you an overall outlook on your general health.
Come on CJ you can do it, if you ever need any tips or advice or encouragment, I am willing to help.
Get into some good habits and you can crack it!