Get good at what you do. If you are a full spine chiropractor-learn upper cervical or Logan technique. If you use osseous adjusting techniques, learn a low force technique.
If you are a low force doctor, learn how to move a bone. Learn to adjust cranials, extremities…everything.
Take seminars for the knowledge, never mind how many continuing ed hours or how many rounds of golf you’ll be able to play…learn something completely out of your comfort zone.
Be passionate about your craft. You never know enough…you will never, ever know enough. Now, while you are learning…go help some people.