You need to be careful though. You need to have enough fat in your diet to stay healthy. Go buy a calorie/fat counting book. They are at any book store and even the grocery store.
I am telling you, if you stay at 25 grams of fat a day, you will drop weight and be healthy doing so. I really recommend a multi vitamin, you need it so that if you are lacking in areas it will balance it out.
I don't count my calories, I only count fat and take a multi vitamin. You will also find you can drink alcohol. I can drink my Capt Morgan with diet coke and it stays within my diet. Now, sometimes I will waive eating all day so that I can party hard that night. (that is not recommended)
Oh, one more thing, when you fall off the wagon don't give up. Chalk it up to a bad day and resume the next day. We are all human and slip ups happen. You can and will do this, the rewards of it are amazing. I get hollered at all the time by men that are my sons ages! lol. It is good to have your body match your mind spirit.
Good luck, and you don't need it. You already took the first steps, you will tweak it out in no time!