Transmigrated Into Harry Potter With a System

Aaron was an ordinary boy living a peaceful life, but one day that came crashing down as he was diagnosed with a terminal disease. Living the remainder of his life in the hospital reading books waiting for death to come. And that's when his fateful day came, slowly closing his eyes for all eternity... [Congratulations host for unlocking the system] This is my first time writing, I may be inexperienced but please take care of me. If you guys have any suggestions or think something is wrong please let me know, I always appreciate constructive criticism. Ps. Cover is not mine if you're the owner of the cover and you would like me to take it down let me know and ill remove it.