Got Reincarnated in Harry Potter With A System (SI/Oc)

Yes, this a self-insert I'm doing it for me. And to improve my writing (Art is not mine it's made by taiwonton on DeviantArt) Himi was doing what he always did when bored, looking for a good fanfic to read. Then out a nowhere a truck came and crashed in his house killing him. Now he's in a different body with somebody else's memory's with a Hogwarts letter in his hand.