Dyslexia means you have difficulty reading. It's a catch-all term: you might have letters reverse, so that a small 'n' looks like a 'u' or the page might look too bright. It's different things for different people.
Check out Recording for the Blind & Dyslexic: rfbd.org. you can get your textbooks recorded and learn through listening.
There are a lot of famous people with dyslexia who are very rich and successful: Tom Cruise, Nolan Ryan, Cher, Charles Schwab. you can get help and be able to graduate school and do well in life. good luck!