Hi Rochelle and welcome to the forum, you will find lots of helpful advice both here on the forum and on the homepage. There are lots of challenges and diaries to keep you motivated too.
One of the most important keys to weight loss is attitude. You need to believe in yourself and know that you can do this.
The most important thing is to learn to love yourself, this is a major hurdle to overcome when you spend years hating yourself (as I did). But you need to look at yourself as not what you look lilke, but who you are. Ask yourself the question, "do I really hate myself, or just the way I look?" There is a big difference in the two.
Find out what weight you would like to be and set yourself some goals along the way. A lot of us here have mini goals and goals to buy ourselves special rewards (like a cd or jewellery etc) to help the motivation factor.
If you have no particular program in mind I would agree with Mandie and go and see a dietician to get you started. It needn't be expensive as Public Hospitals offer this service for free. Exercise is also an important part of any weight loss program. Start off slowly and at your pace and build it up at your own speed.
Feel free to ask advice on the forum and don't hold back in joining the challenges and weigh in's!!
You CAN do this mate, you can. By your first anniversary you are going to look gorgeous!