It is so refreshing to see a person who wants to go about getting in shape the right way, instead of following a "fad diet".
First of all, if you can, go to a doctor to get a physical, so that you know that you are otherwise healthy other than needing to lose weight. If you have had a regular check up, and everything is okay, then you should be ready to go!
First of all, start keeping a food diary. If you go to www.nutrition data.com , you can enter most if not all of the foods that you eat (even from fast food and other restaurants). While keeping your diary, I have found it helpful to keep an index card in my purse so that I can record EVERYTHING that I eat. Even little bites can add up quickly. Before I go to bed, I record my day's food intake, and see what I have really eaten during the day. I believe that the website will also give you suggestions on how to improve your diet for maximum nutrition.
Secondly, If you are really looking for a lifestyle change, you must do it slowly. If you currently consume a lot of fats, then it is wise to slowly rid them from your diet. If you stop eating them all at once, you can create problems with enzymes and hormones used in the digestion of food. You must give your body time to adjust. Also, if you currently drink whole milk, change to 2%, and then in a few weeks, switch to skim milk.
Another thing that you may want to try to do is slowly introduce healthier foods into your diet. If you normally snack on potato chips, switch to pretzels. Ice cream? Try yogurt instead. Milkshake? Try a smoothie- Make it at home so that you know exactly what is going into it. If you don't get a lot of fiber in your diet, you should also try to add it gradually. Start with whole grain breads, and go from there. If you are going out to dinner at a "sit down" restaurant, then try eating an apple or a banana about 15-20 minutes before you get to the restaurant, and have then split your order (half now, half to go) before they bring it to your table.
Meanwhile, if you lead a sedentary lifestyle, you should get moving! Start slowly- Park far away (within reason) of where you are going, so that you will sneak in a bit of walking here and there. Take the stairs instead of the elevator/escalator. Also, I recommend doing some light stretching in the morning, as this will help you be more comfortable as you become more active. Throw away your remote control to your TV unless you have to have it for certain functions, but even then, keep it on top of the TV, so that you have to get up to change the channel.
The weight will start to slowly come off at first, and then you will reach a point where you are going to feel better, and then you can adjust your diet and exercise to something more vigorous.
It is very important to start slowly on the exercise business. If you don't usually exercise , you can easily become injured by the strain on your joints from the extra weight you are carrying,
As far as motivation, the website that I listed above has many features to help you monitor and chart your progress. If you start taking your lunch to work, and cut down on convenience foods, you will save a lot money. Put the savings aside, and when you reach a certain goal, or your clothes start getting too loose, use the money to reward yourself with a new pair of jeans, or if you are ready for a more vigorous exercise routine,you can use it to buy rollerblades, or join a gym.
Some other things that you can do to help you stay motivated are to get your cholestrol levels checked monthly, as well as your blood pressur, etc. If you keep a chart of these things, you will be motivated to keep the good trend going. Also, do not rely on the scale to chart your progress, because as you gain muscle and lose fat, you may not see the numbers go down very quickly, because muscle weighs more than fat.
If you do slip up, then don't get discouraged, just realize that you are human, and get back on track as soon as possible.
GOOD LUCK, and let us know how you are doing!