Love Yourself.It is important to stay positive because beauty comes form the inside out.

Successful people maintain a positive focus in life no matter what is going on around them.They stay focused on their past successes rather than their past failures,and on the next action steps they need to take to get them closer to the fulfillment of their goals rather than all the other distractions that life presents to them.What you feel inside reflects on your face.so be happy and stay positive all the time.
Struggle to improve if their is something in you ,which you don't like and can't bear try to remove that. Try to improve yourself .It could be anything .For example the way you talk and your communication skills. If that is the problem then practice talking.Practice makes a man perfect and in this case a woman too!so practice and you will improve.Likewise,if you don't like the way the way you look because of the fact that you are fat,and then try to get rid of those few extra pounds to love yourself.If may take in a little effort but you will gain a lot of satisfaction. And that is what you need to love yourself and live a satisfied life!
Appreciate yourself at every achievement of yours. No matter how small it is,its an achieve.
Dropping negative attitudes goes a long way towards helping you with almost every problem in life.A positive approach can help you to love yourself too! You will feel well about yourself and others if you look at things in a more positive light. so try to adopt this approach!