Your passion is not only about motivation, but it is also a fruit of your intimacy with God. There is also much more to who we are in Christ if we would live for Him and discover it.
There are very practical tools to get started. Ultimately, if you really want to go on this journey of fulfilling a life purpose, those are just the start. To fulfill purpose on an every-day basis, to live and breathe that life, you need to make connections with other Christians living the same way.