To become more skilled, you need to know how to engage in deliberate practice, and you need to know the skills to practice. The following books are very clinical, filled with practical suggestions, and each will help you become more skilled and effective.
Prescott, David S [Ed]; Maeschalck, Cynthia L [Ed]; Miller, Scott D [Ed]
Feedback-informed treatment in clinical practice: Reaching for excellence
including chapter by Daryl Chow, The practice and the practical: Pushing your clinical performance to the next level, pp 323-355
T. Rousmaniere, R. K. Goodyear, S. D. Miller, & B. Wampold (Eds.)
The Cycle of Excellence: Using Deliberate Practice in Supervision, Training, and Independent Practice
including chapter by Miller, S. D., Hubble, M., & Chow, D. Professional development: An Oxymoron?