I am reaching out to you after visiting your site and I want to share with you a free plugin tool to enable a membership management system and live chat support system for your website and services. With this you can start charging your potential clients online and set up recurring payments or one-time payments for your services and memberships.
You can find more about it here: https://wordpress.org/plugins/gym-studio-membership-management/
If you have any questions and need help setting this plugin or system on your website, please reach out to me anytime. Have a nice day!