Let it run through your mind constantly. When you start to have negative thoughts crowd them out by methodically repeating this in your mind over and over.
Repeat it as you prepare for your day. Repeat it as you get ready to go to bed.
"You are a powerful creator. Give great thought to what it is that you wish for, and give birth to all your dreams one by one. You have the ability to grow your life into all you’ve ever wanted."