Oral exam preparation

My teacher gave me and my partner a Spanish orel to prepare during my November exams I had one day to prepare and learn off by heart and I feel like I'm going to have a melt down the second she tells us to start in front of the whole class because my brain does not work that way I can't learn as fast as the other kids I have dislexia and I'm finding Spanish really hard should I ask my mom can I drop it or tell the teacher I don't understand what should I do I'm freaking out I feel so stressed and stupid for not being able to do this simple thing