Remember the field of psychology is vast and literally never-ending, you can always learn more.
Follow the institute or therapists that regularly create content on content on concepts and techniques that you can use in your practice.
There is a difference between theoretical conceptual knowledge and practical skills that you will need to use in your practice.
Take a course in practice-based learning for the major approaches to psychotherapy or the Comprehensive Cognitive Hypnotic Psychotherapy Program.
Join a psychologist support group. Participate in the meetings, join case discussions, and share with and learn from other practicing psychologists.
"Consider an extensive internship or fellowship of at least a year if you have recently completed your master's degree. Short internships may provide initial exposure, but longer ones allow for more practical experience."
If you have been attending multiple courses but still do not have the confidence to work with clients, this may not be a skill-related issue but an issue related to mental state and emotional state