Your last site still says what you did in 2019.
The site never hears about it
You moved from design into development two years ago. Your site has not heard. Updating it means finding the theme, the plugin, the password, and the person who built it. Work changes. The site usually does not, because opening it again is a project.
What Yoursellf does
You edit the site on the page itself. Press Edit, change the words and the prices, press Save. When you move from design into development, or from development into marketing, the new offer is up before dinner. The page you show clients is the page you edit, so it never falls behind the work.