The first thing you need to do is ensure that WooCommerce is installed on your website. If not, you can easily find it in the WordPress.org plugin repository. After that, you can purchase and install the WooCommerce Memberships plugin for $199 per year, which will provide you with all the necessary tools to create member-only areas on your site. Follow the step-by-step guide on the setup page to customize how membership areas appear to visitors and assign member perks.