Where would you start if you were me?

Here is my situation:

I'm turning 25 in a week and I've decided I want to pursue a career as an X-Ray tech. I started looking into it this summer and unfortunately realized I should have started much earlier. I figured the teas was something I could take in the Spring and get into my program for Fall 2027, but I'm told I have to test this fall to make it into the program. This revelation has me really stressed out, I really don't want to wait until 2028 to start, I already feel so far behind my peers for my age. I am terrible at test taking, I bought the official ATI test book and took all the practice exams. I only got 2 wrong on the reading section, 4 wrong on the English. I'm not too concerned about those subjects. I am terrified about the math and science. I am terrible at math, I genuinely hate the subject and have never done well in it. I am not great at science either. In high school I got the lowest grade possible in chemistry. I am interested in anatomy and biology and I recently took a college biology course. I bought an anatomy coloring book, but I am feeling crushed with the weight of everything I have to learn. I'd really like to do well on this exam and get into my program for 2027. I'm probably going to take the exam in October. What should I do in order to pass the exam? I am honestly an awful student, I never did well with studying and honestly I don't know how. I want to move up in my life and I feel like my future is hinging on this exam. What topics should I study and what resources should I take advantage of? I am looking into a math tutor. I have the ati exam book, I am looking into Mometrix. I really want to prove to myself that I can do this, I just don't know how.