Telling yourself each day that your awesome, and you like yourself, and writing down all the good things you did that day? Since nobody else is going to tell you in life?

I think it’s good to do that,but I think there’s more to it than JUST that. For example,you eventually have to start believing in yourself,realizing that you’re just as good as anyone else.
Learn how to stop paying attention to what someone else thinks of you,and loving yourself for who you are,and accepting your flaws.