Why do my tortillas break? (Rookie)

This is like the 4th time I tried to make tortillas and they always come out brittle and I don't understand why. I am not native to Mexico and I do not cook Mexican food (although I like to eat it)

Since I am not a native of Mexico, the only way to learn to cook tortillas is through the internet:(

I followed all the steps and ingredients in this video: https://youtu.be/zIPlSN3DMHE?si=0VNmg-AUa_COSbCo