Hello Paula, sorry about your problems. My name is Marco and I will do my best to help you.
Open Google Chrome.
On the new tab page (where your shortcuts are displayed), look for a pencil icon or three dots that usually indicate customization options.
Click on this icon to open the customization settings for your new tab page.
Look for an option related to ‘Shortcuts’ or ‘Most visited sites.’
Within this menu, there might be settings to adjust how many shortcuts are displayed or how they are arranged.
If available, select an option that allows displaying more than one row of shortcuts.
If these steps do not resolve your issue:
Try resizing your browser window to see if it affects how many rows of shortcuts are displayed.