For me, lists work really well. Write down lists of things you want in your life, and start working on them. Write the things you want as if you have them, and read the list often:
I know what I am doing
I have a greater purpose which I love
I read interesting books all the time
I help people in the world around me
I believe the world is full of opportunity and I can choose the opportunities I want
I have the courage to do what I want and try new things
I also recommend audible.com as a place to get audio books. They have many plans, but I pay 20 dollars a month and get two books per month. Many of the books have given me purpose in terms of my health and financial goals. Plus, with audio books you can be doing chores and reading. It is great.
I think everyone has the purpose to live for optimal health, this means eating/sleeping and exercising well.
Also, everyone has the purpose to see the world as inifite opportunity, and build on them.