Compile a list of the things you love about yourself. Think about how you adore those dimples on your cheeks or how your smile outshines everyone in a room. Collect and write them on a list and read them to yourself every morning after you wake up and every night before you sleep. Recite them in your head on the train ride to school or work. Re-enforcing the best qualities about you produces a stronger self-image and eliminates jealously from your mind. This can also take it off the things you hate about yourself, or even reconsider why you do not like those things.
Change what you do not like about yourself. If you are a size 9 and you want to become slimmer and more fit, join a weight-loss program. Begin a strict regiment of exercise and healthy eating to produce results. Do not try to emulate the models you see in magazines, since that would not be too healthy. Lose enough pounds so you reach a healthy size, but remember that there is nothing wrong with having curves. Accept the things you cannot change about yourself, such as skin color or height. Realize that what is portrayed in the media is not always what it seems.
Surround yourself with friends who care about your well-being. Their positive energy will radiate onto you and minimize feelings of jealousy, boosting self-worth. Consider cutting contact with overly negative or pessimistic friends who have nothing good to say about themselves or others. These people will drag you down and create an atmosphere where jealousy can thrive.
Understand that not all men are the same. Some men will prefer women who are a certain weight or women without glasses. If you did not get that one guy's attention on the street or at work, do not take it personally. Everyone gets rejected at one point or another. Know that there are plenty of men out there. Quite a few of them will choose to be with you and your flaws and insecurities, moving them to the side to see the authentic person within. Do not worry if your boyfriend or husband pays attention to another women; that does not mean he has lost interest in you. Humans are visual creatures, especially men. Never look to a man to fulfill your self-worth. Create it from your own achievements.
Leave the competitive streak for the sports field. Trying to compete with other women based on superficial things such as money and looks only divides women instead of uniting them. Do not compare yourself to the woman who lives in a posh mansion and has a million dollar salary. Learn to cherish what you already have and treat it like gold.