The fastest, most effective way to learn acceptance and therefore feel better about yourself is to do The Work by Byron Katie. You can find it online or buy her book Loving What Is What The Work does is have you focus on something that angers, frustrates, disappoint or confuses in someone else. It asks you to consider what changes they should make in your view, and what things you never want to experience from them again. Then it asks you four simple questions about each statement.
1. Is it true?
2. Can you absolutely know that it’s true?
3. How do you react, what happens, when you believe that thought?
Who would you be without the thought?
Finally, you turn the statements around on yourself and look for the truth in them. It’s a profound and rapid way to recognize and reduce projected detrimental beliefs.