Know why you hate yourself. There are different reasons why you can hate yourself; childhood trauma, past mistakes, criticisms from people, and so on. Know the cause.
Have compassion for yourself. Show yourself some kindness, find one or two things that you like about yourself.
Say positive things about yourself. Write out he positive affirmations and say them out loud to yourself. You will definitely feel confident after this.
Accept compliments from people. If people compliment your hair, accept the fact that your hair is actually nice.
Learn to say no to others. Sometimes, when you hate yourself, you tend to please other and impress them. Learning to say no may be hard at first, but people will definitely adjust when you start telling them no.
Forgive yourself and others. Forgiveness will make you feel light and free. When you hold on to past mistakes and offended, you won’t be able to move forward.