When I Opened My Eyes, I Became a Day Student of Time

I woke up and traveled back to three years ago. I thought it was a dream. After a few days of verification, I found that it was an unknown ability similar to a special ability that made me travel back to three years ago. I want to experience three years again. During these three years, will I still be as confused and inactive as I was three years ago and become a miserable high school student, or will I change the status quo and use time travel to change my destiny? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.