Baseball players have their power zones (or whatever the term is): The areas of the strike zone where, when a pitcher throws a pitch there, that player gets their best hits.
You have your own power zones. What are you doing when you're contributing most to your team? At your job? Making the most money? Helping the most people? Solving the most problems?
Do more of that. Do it better than anyone else, to the point that you are the person to call for that thing.
Then, charge a premium for your services.