It sounds like you have a broad background that will surely connect with clients. They appreciate knowing you as a person, and you too will find the year-by-year interactions rewarding. Some clients came to me because of our welcoming atmosphere. It got to be their social hour, and at some point that became too time-consuming--Covid put an end to that. I too started small with a narrow knowledge base, but over time clients came with issues I needed to research. By now I feel self-confident; if not - I turn to this excellent online community for answers.