Undergraduate / uc essay #1 describing world i came from [3]

Here's what I think you should change in your last paragraph.

My introvert personality shaped my world of fantasy. I played some PlayStation action games to wipe my stress out and it has worked, so I played game for 10 days without seeing any friends during the summer vacation. Generally, I keep to myself (You used introvert already), but when there is challenge or something I can face , my personality changes and I become passionate.