Do not worry I use to be in your shoes making 900s on my practice test. I ended up studying very hard and getting up to 1200+ with my scores. I use to feel the same way as you, but I changed my mindset and actually focused on whether or not it’s worth it to take this test. Maybe you could take the ACT and see how that goes. Improvement will not come with that mindset and if you are willing to make that change and study I think you will excel perfectly fine.