Dear Taff,
We all have power within in...so do you..
One method I use is changing words/questions in my mind.
For book, I love "Power is within you" - Louise Hay. I like her voice when I listen to her book. And her self esteem affirmations audio make me feel good when listen to and say them out loud in my car.
One power message/question I love and ask myself. "What can I do to make it better?"
..Love & Hug to you...