Hi! I'm glad you are determined to lose weight, good job! Determination is half the success :)
Now, I have the same problem as you few years back.
The first thing you should know : DO NOT GO ON A DIET
It does not work! It'll only make you gain more weight. Trust me, it's proven all over the world
Number two: BE CAREFUL OF WHAT YOU EAT
Foods that are high in sugar or fats should not be taken at all!
examples: fast food, chips, sweets, canned drinks.
take a look at this pyramid:
Take food which only belong to the Bread, Cereal group, Vegetable group, and Fruits group
Meat eggs and milk yoghurt group can be taken, but not all the time. Probably 4 times a week.
DO NOT TAKE OIL SWEET GROUP! NO WAY!
Number three: EAT LESS, EAT MORE TIMES
you can eat up to 5-6 meals a day, BUT each meal is a small amount.
Eat less in quantity, more in frequency. This is very very effective.
Number four: NEVER EVER TOUCH SLIMMING PILLS
this pills are very very damaging to your health, please do not take them!
Number five: TAKE FOOD WHICH HELPS LOWER BLOOD PRESSURE & CHOLESTEROL
a good food that helps you lower your BP is GRREN APPLE JUICE
but remember, do not take in large amounts on a regular basis, it can cause dizziness.
take about 3 times a week, a cup full will do.
Number five: DO NOT EAT 3 HOURS BEFORE YOU SLEEP
this is a BIG NO NO. your body is not capable of processing your food properly while you are asleep. they will turn into fats.
Number six: EXERCISE
exercise at least 4 times a week, at least 60 minutes per time
suitable exercises: http://bit.ly/1DGq57l
instead of spending money on useless slimming pills, you can hire a personal trainer to set your exercising schedule and monitor you.
Number seven: BE DETERMINED
BE DETERMINED! do not cave into temptation when you see fast food, chips, cookies, sweets, etc etc. Do not touch them! Always persevere to the end!
Number eight: SUPPORT FROM FAMILIES & FRIENDS
Psychology plays a big part too. You'll be more efficient with moral support from friends or families. You'll be motivated to do better :)
Stick to the eight steps strictly and you'll notice results in no time, lady :)
Remember, determination is half the success! You've already succeed half-way! Do not give up and keep on persevere till the end :)