Hello and welcome to Apple Support Communities, brynn195.
If I understand your post correctly, contacts and messages are not appearing on your MacBook. I’d like to help.
To sync your contacts follow these steps:
Add contacts from iCloud, Google, and more to Contacts on Mac
Follow the steps in this article to sync your messages:
Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and Apple Watch
Let us know if that resolves this issue for you.
Thanks for using the Apple Support Communities. Take care.