One of the most important considerations when you are evaluating your meaning in life and purpose is to check on yourself and find what pains you the most. Then work on yourself to become skillful in dealing with that pain and then offering your wisdom to others to reduce pain in their own life.
You should be willing to struggle and suffer to pursue your dream and passion and that becomes your purpose if your passion is serving other people. it’s not about doing what brings you lot of joy and instant pleasure, it’s about willing to stay in the pain and struggle to attain mastery over certain area of the life and spreading it to others.
*Do read the Disclaimer