Hear your voice clearly in your head. Start treating yourself the way you want others to treat you. Make the voice in your head your best friend and your biggest supporter. It is this voice which will either make you or break you, which will either shape you or destroy you. Everything else is inconsequential.
Change your internal dialogue and you will for sure see a change in yourself. Being positive may seem a bit theoretical at times but overcoming negative thoughts is something which is most important. Listen to your inner voice because it will never guide you on the wrong path.