my ipod 7 wont sync music and i already reset it and deleted and reinstalled itunes

With all that resetting and re-installing, I think iTunes is simply seeing your iPod as a new device, in which case, you need to set some Sync options in order to get any music onto it.

• Connect the iPod to the computer and when iTunes sees it, click on the iPod icon:

which then shows the Device/Settings/Summary pane, which looks like this:

• click on Device/Settings/Music (1.) in the picture below:

• Make sure that Sync Music (2.) is ticked
• in step 3., choose either:
  • Entire music library - which adds all ticked songs to your iPod
  • Selected playlist, artists, albums and genres - which opens up section 4.
• if you chose selected playlist, artists, albums and genres, you then select the items you want from section 4.
• click the Sync button (in the lower right corner of the iTunes window, see second screenshot)
• when the sync has finished, the two arrows above the battery icon will change to an eject button. Click the eject button
• disconnect the iPod from your computer

That's it. Does it work? If not, at which point does it go wrong?