I would not put too much store by one test.
You might want to take the test a couple of times and if you consistently get similar results, you could try to talk to your parents or maybe there is someone at school who could help you make sense of what you sense is going on for you.
Try reading a bit more about alexithymia and see if it fits you
I took the test twice, and the second time I scored a 121. I have a therapist, but I don't know the next time we can talk. I want to be evaluated with a better test, but I don't know where to find one, and I would like to talk to my doctor about it, but I don't think my mom would understand. Even before this, I tried to explain to her that I couldn't feel normal emotions; and she seemed really confused. What should I do?
try these
https://psymed.info/alexithymia-test
google TAS 20 and follow the trail.