I bought a Domain Name through Google Domains, and when I purchased it, it offered for me to sign up for a company email to match the domain, so I agreed.

I've never hosted a website before but the instructor of my web design class suggested using digital ocean rather than a hosting site. I've successfully transferred my domain to my website, but in doing so Google Domains gives me this

"It looks like you've changed your name servers. All settings for your domain (including website, email, synthetic records and resource records) are currently disabled. To enable these settings, you will need to restore the Google Domains name servers. Learn more"

I've tried using digital oceans "add Gmail MX Record" feature but I still don't seem to be getting emails through GMail. Is there a step I've missed?

edit: also worth noting, I can send emails from the address, but I don't receive them.