Wondering do mild head impacts only set you back, or will they cause some permanent damage. For example would you recover 95% rather than 97% because you took a few hits during your recovery

You are asking an impossible to answer question. Nobody could tell if there is a difference between 95% and 97% recovery.

I had written out a lengthy response but my mouse pad took a deviation and it disappeared.

Simply put, you need to just move forward and apply yourself to the things you have been taught. Lower your stress and anxiety levels and you will do best.

Suffice it to say, I had a major academic setback my sophomore/10th year. After straight A's (93.3% average) as a freshman (9th), I struggled to get an A or 90% grade during my sophomore year.

My severe concussion was in 1965. I had some minor roller coaster academic years since. As a freshman in 1969, I successfully challenged freshman/9th math and took soph/10th math instead. I still had to take the final at the end of the year but I scored the highest (98%) in the freshman class without the full class. I did a day of homework a week just so I could get the credit on my transcript. I was taking 3rd year Spanish with the juniors and seniors. I killed the grades. As a sophomore, I took junior (11th) math in 1970-71. I struggled due to my concussion but still got 85 and 90s. This was my last high school math class.

I have taken the SAT three times since 1972. I got a 650 on the math in early 1972, a 710 in math in late 1972 and a 790 in 1998 after suffering a moderate concussion with 8 months of headaches in 1996. I had not had a math class since college in 1974, finite math and trig. (A's)

BUT, I applied my mind to math and other cognitive challenges and never looked back except to note that I was improving.

I have many cognitive and memory challenges due to 14 concussions but I have worked past or around them.

Make a choice to work past these bumps and stop this 'I bumped my head with a basket ball and my math life is over' nonsense.

I appreciate the time and effort you put into your answers, it made me realize even though I was bumped in the head a few times, I have still have the willpower to make good grades and achieve my goals in life. Even if it takes more effort to commit things to memory or perform long mathematical proofs, I can still achieve my goals. Thanks for the help.