Hi Twofish,
Welcome to the forum! I started having seizures when I was 10 and just like you I had a hard time in high school especially when it came to doing a test. I was also on the same AED's as you are.
One thing that I did is take extra notes for myself and I would read them over and over which was a great help to me. I also found that I could concentrate better in a room with no noise.
Don't be so hard on yourself take a look at Elton John, he's had E. for many yrs. but he still made it big. I've had E. for 34 yrs. and I've been working as a teacher aide is special Ed. for 21 yrs. I never thought I would make it that far but I just told myself not to give up and I'm sure you won't either. Here's wishing you well and May God Bless You!

Sue