You need a professional business email address, but maybe you're not ready to spring for a paid Google Workspace subscription.
Good news! There are a few very affordable (or even free!) methods that allow you to use a custom domain with your existing Gmail account.
Register your domain name at Namecheap: http://sidekick.show/namecheap (affiliate link)
Grab super affordable web and email hosting with Hostinger: http://sidekick.show/hostinger (affiliate link)
Just go for it! Sign up for Google Workspace: http://sidekick.show/google (affiliate link)
Need additional help getting set up? Connect with me at https://selfemploymentsidekick.com
