Cracked Screen

Cracked sufficiently to effect function? Connect to an external display. See if that works.

Use an external display with your MacBook Pro - Apple Support

An HDMI adapter might get your Mac to display its output on an HDMI-capable TV, for instance.

Consistent backups are how data is marked as being valuable. No backups means the data is of no value.

Time Machine is one of the preferred means of backing up your data to external storage, either directly connected or to network-attached storage. See the Related Article, above.

By doing exactly what is in the Related Article Link at the top of this page, which brought you here to create a Time Machine backup using an external disc drive.