There are a few different ways that you can raft on your Macbook. One way is to use the built-in Rafting tool. To do this, open the Finder and click on the Go menu. From the drop-down menu, select Go to Folder. In the box that appears, type in /Applications/Raft.app and click Go. The Raft application will open and you can follow the instructions to raft your files.
Another way to raft on your Macbook is to use a third-party application such as Carbon Copy Cloner or SuperDuper. These applications will allow you to create a bootable clone of your hard drive which you can use to boot your Macbook if your primary drive fails.
If you are not sure how to raft on your Macbook, you can contact Apple support for help.