lost track

I think audacity would be better if the audacity program would save and number every track in a file that you recorded during your project even if you delete them so you can recall them at any time during your project or song, then have the program delete them when you export the final project or song

Why not just mute the tracks you don’t want or need - when muted they aren’t played or exported.

Just use the Mute button in each track’s Track Control Panel.