One of the challenges of being a practitioner is describing what you do and communicating that clearly to other people.
It sounds like it should be easy, and it really isn't.
In a lot of ways, this is visioning work. What's possible with your work? What would you like your work with clients to look like? What exactly are you bringing to the healing process?
Marketing is essentially the act of being able to answer these - and similar - questions, and then articulating this to other people along with an invitation to join you in the work.
If you're looking to refine how you explain what you do, here's one of my very favorite questions to mull over:
At what point in a person's journey would your work best fit in? When is the optimal time for them to come to work with you?
For example: do you do your best work immediately after someone has been diagnosed? Are your people the folks with very complex cases who are almost ready to give up? Are you the perfect person to join them immediately after a crisis or breaking point? When they're slogging through the messy middle and get lost in the weeds? Maybe your work shines with folks who are right out of college or who've just had a baby.
Whatever it is, knowing the answers will help you shine some light on the "who I work with" answer.