Opinion of others about you is important. But more critical than that what matters is your self-opinion. If you believe you are weak, if you believe you are sad or you are a loser can your projection of behaviour be different? Do not over value what you are not. The world is full of boasters. But certainly do not undervalue what you are. That is important. The greatest blunder people make is to pass-on the remote control of their assessment & thus their happiness, on to others. All that you need to really focus on is what brings you alive. Low self- worth is literally driving your car on the Expressway of life with your hand-brakes on. You can never win.That apart. You will damage your car and will never be happy. Rightly said Edmund Hillary. It is not the mountain we conquer but ourselves! You have to conquer the mountains of your choice. But first, begin with yourself !