แก้คำให้ถูกต้อง

If I could travel back in time I would like to go to my childhood to be younger again and enjoy a lot of thing .Also because I was a bad student, I had terrible grades becuase of this I fail two years but the worse was I couldn't learn a lot from my teachers including English.

Also, I would like to travel back in the time to save my brother from an accident, he was in the river and got a bad step and slipped so he broke his leg