This is not about bringing in MORE leads. Learning sales is going to help you get clear on how to attract the RIGHT leads AND convert high-paying clients 1-1. Mastering sales (as service) helps you SEE how you are different from your competition, and make more money with fewer clients and prospects. This is about identifying what is unique about you and your work, and how to communicate it so the right people will say yes.
This is also bigger than thinking positive and trying to convince yourself and your clients that you have value. This is about the deeper opportunity to see your internal patterns in how you attract (or don't) ideal clients and transform it to what you want.
Of course, if you still have questions if this is right for YOUR - send me an email (firstname.lastname@example.org) with your personal situation and I will make a recommendation about what I think is the best fit for you.