How can I sync my iPod Touch without losing any song?

Hello my laptop crashed after the latest windows update and I have had to have a new hard drive. I have installed Itunes on the new laptop hard drive but it only shows my songs that were saved in the cloud.

My ipod touch is up to date but I'm afraid of connecting it and syncing and the cloud version overwriting my ipod touch.

How do i ensure the ipod touch overrides what's in the itunes library on my laptop?

Thank you

[Re-Titled by Moderator]