You need to take a practice test first before we can give you any solid advice tailored to your specific needs. For now what I can tell you is --
Ways to improve SAT Math:
The SAT Math holds the highest weight on your WCS (Whole Candidate Score). By acing the math, you are setting yourself up for success! Don't buy into the idea that you have to be "smart" or "gifted" to do well, I did perfectly fine and I am not really that smart tbh. Furthermore, don't let frustration impede your success, every time you miss a question is another opportunity to improve your overall math skills. Take this always improving mindset into your practice and you will 100% succeed.
Calculator:
Ti-Nspire CX II CAS. Learn it, it is the most pay-to-win thing I have ever seen. If you are dead serious about getting into an SA, learn this calculator inside and out and the calculator section will be a breeze. (still practice though!!)
SAT Math Sections (in general):
- Use Khan Academy
- Use Khan Academy
- Use Khan Academy
- Khan Academy is a free resource that helped me get from a 620 M to a 750 M in 3 weeks, their math program has been proven to be effective in raising scores significantly. Make sure you practice every day to prepare and make sure you specifically focus on SAT math strategies.
- Math teachers are a good source of support, furthermore, you can build your rapport with whomever will fill out your SOE for Math by attending tutoring sessions.
- College Panda, didn't really try this but I heard it can help a lot with specifically tricky questions.
Non-calculator:
There are a lot of skills that go into this section. I would recommend time-management be one of the focal points of your practice. Obviously you should not rush it, but you must be very quick in order to have time to go back and check your answers. What helped me was doing timed drills, giving myself only 1 minute to answer 2-4 questions that I found online. The non-calculator section is a test of your quick mental math and quick thinking skills. Let yourself shine and practice as if you don't have all of the time in the world, the math is not really that hard on this section. Set goals for yourself when doing it as well, look to get 95% of the questions right.
Calculator:
There are also many skills that go into this section. I would recommend learning calculator skills as this proficiency can save you valuable minutes. However, you have a lot of time so break down each question to the level that you must. This section has many deceptive questions that you should practice for. Make sure you practice sub-math groups like Statistics and Scientific math, as this will allow you to answer questions that may seem difficult for someone who does not have this practice. All in all, apply the same mindset as mentioned before for the non-calculator.
Ways to improve SAT English sections:
Reading:
Read more. Read more. Read more. The more you critically think about WHY an author/writer makes a creative choice the easier this section will get. Think about deeper meanings, but don't forget to use the literal text! Again Khan Academy is a very useful source for this information. I know you have dyslexia, but you still need to push yourself to perform at a higher level. At the end of the day, no one cares about your condition. Don't use that as an excuse to be content with a worse performance. Use your dyslexia to fuel your passion to get better, to show people who doubt you that you can overcome anything sent at you. Also, write about this in your essays, talk about how your dyslexia has pushed you farther in everything that you do.
Writing:
Write a lot. Sonnets, essays, plays, whatever it is, tighten your grip on the English language like a vice. Make sure you understand grammar rules inside and out, make sure that if someone were to hold a gun to your head while asking you about Oxford commas you could appropriately reply that it doesn't matter which version you use. Again, Khan Academy is an excellent source for material regarding learning and developing your English skills.
As to answer your questions, having a bad SAT score will certainly destroy your application. USMA is looking for a warrior-scholar, someone who proves themselves athletically and academically. Show West Point that you are that person and you will succeed.