This was your first time taking it! Try not to get discouraged. It's not an easy test. You did incredible in your reading section! I purchased the ATI TEAS smart prep through the website. It includes two full practice exam and it reviews what specific areas you need to focus on and gives you lessons on areas to work on. This probably helped me the most to acclimate myself to the test and the time limit.
I'm not a huge fan of the mometrix study guide. It's a good start but I definitely would not have gotten a high score using this guide alone. I felt the study guide gave you just enough information to make an educated guess. For example, the TEAS test will ask you what a nonspecific immune response would be. Mometrix mentions NOTHING about cytokines! I watched tons of videos on youtube and Khan Academy to review and go more in depth. I listened to videos in my car, while working out, etc. My theory is that mometrix uses the same stuff on their HESI A2
and TEAS study guide which doesn't necessarily mesh.
You said you haven't finished A&P yet and probably a lot of the people who are getting 90% and higher have taken the courses that are on the TEAS test. I have taken Organic Chemistry, Microbiology, General Chemistry, AP Biology, Human Anatomy, and Physiology before attempting the TEAS. I got a 97% on the science portion first attempt.
I've also taken calculus and previously tutored students at my college and I got 98% on the math portion. My tip on the math section is since it's multiple choice you can always fill in the answers to try them out for the algebra problems via process of elimination which guarantees you get the right answer. For the problem solving, I think I looked up college algebra word problems online to find worksheets. If you don't understand them, try going to a math tutor! If that's not available you can also look at youtube videos to follow.