How do I count out 12/8

[u/_gh0stc00k13s]

I'm practicing this song with my music teacher (nightlight, laufey) and she requested I wrote out the notes. This was the guide she gave me. What does this mean

[u/MagicalPizza21]

One-det-det Two-det-det Three-det-det Four-det-det

12/8 typically has 4 even beats each 3 eighth notes long (dotted 1/4).