You can tap on any feeling you don't want and if you can't actually give it a name then you can just tap on "these feelings" or 'feeling bad" or whatever word they give it. You can even tap on "I don't know what I'm feeling" and you can tap silently if your child would prefer not to share what they're feeling.
If you teach or assist in a school, consider tapping silently with the class. Here are the tapping points. We start at the top of the head and work down, continuing the process until they feel calm. You can see on the video above how to do it.
I think the best one for exam stress and anxiety is probably 'Empower your Kids! but if you're a teacher of coach, then 'Understanding children and teens' may be another good choice.
Get in touch if you'd like to book a free 30 minute tapping session for your anxious teen. They don't have to use their camera or mic they only need to see me and mention in the chat the words that are coming up for them so I make sure the tapping addresses what they are feeling.