To gain inner peace, happiness and harmony you have to be alone. You have to learnt to love yourself before anyone else can truly love you. You have to learn to accept yourself before anyone else can truly accept you. You have to learn to love and enjoy your own company and be content in it. You have to develop a bond of trust, comfort and love in yourself. It’s your life. There’s only one person who will know you and support you forever and that’s yourself. You owe it to yourself to love yourself, accept yourself and be yourself.
This is something I am currently practising and going through.