Bro, I grew up with dyslexia, and had a terrible reading comprehension, and also trouble focusing for mostly respiratory issues. Thankfully, a surgeon sort of fixed that for me with surgery. Anyway, it took me long time to understand the logic of algebra, and my ability to write was not coherent in high-school.
But now I'm a senior biochemistry major with a minor in biology. I've researched the history of the earth's atmosphere using ice-cores from the south pole, the forces of interaction for amino acids in a vacuum which are calculated using software which approximates solutions to schrodinger's equation for molecules using matrices, and I am working on antibiotic drug discovery form soil bacteria for a microbiology research project. I have interviewed for a chemical scholarship today, at a medical school last January, applied for another biological statistics research project, and I'm a residence hall assistant.
You can accomplish a lot if you work hard and surround yourself with high-achievers, and listen to the advice of people who believe in your potential. Some people are what they call late bloomers.
I probably have depression and I definitely have anxiety. I just don't want to get diagnosed with it. It's not worth my thoughts.