Im Having Trouble Believing In My Value

I am a licensed psychotherapist and am opening my own practice . I ideally want to work with highly motivated clients who have mild to moderate mental health issues , however, no matter how much reading and workshops I attend to improve my skills sometimes I feel like I don’t have that extra touch or edge to motivate my clients and sometimes this leads me to question my value and effectiveness. How can I work on believing my value ? Or do I need to do other things to feel more confident?