This is a harrowing story, @abigail04. I seems sensible that you wouldn't want to go in the lab, especially since your teacher warned you not to go. It's surprising that you would go near the acid and try to pour water in it. That isn't consistent with what you described as a great fear.
Thankfully, your friend helped you to escape harm and covered for you with the teacher.
Thank you for sharing this experience with us, @abigail04