What areas are you struggling in most, and what have you been using to study? Things that helped me:
FREE - For math, I found Brandon Craft's site really helpful. He has a TEAS math review, videos, etc. - https://www.bcraftmath.com/.
FREE - Search for flashcard sets on quizlet - https://quizlet.com/user/PrenursingSmarterPro/sets
Buy and take the practice tests offered by ATI. You can pay for a subscription to NurseHub, but they have free practice tests: https://nursehub.com/TEAS-7-free-practice-tests/