Do I need a shot for a nail into my thumb thank you

If . If you haven't had a tetanus shot in the last 10 years, then yes.
Agree . Agree tetanus shot if not recent. Watch for infection , swelling out of control or effects of foreign bodies clean with fresh water, apply antibiotic ointment if needed puncture wounds can get infected quickly if they seal one and trap dirt or germs below in the deep tissues.