Is it normal to bleed so much like that?

[English is not my language so don't judge me if I spelled something wrong]
So basically I started use tampons last month, and everything was well, but i the last Wednesday, when my period was in the second day, I put a tampon before go to the school at 6am and I put an pad in my panties to use after took off the tampon in recess time at 10am.
But when I went to the bathroom to take my tampon off on recess
and I sat on the toilet, I saw a drop of blood on my pad and felt a lot of blood coming out of me, even with the tampon
inside me. I think it took me ten minutes in the bathroom cleaning the blood, and when I got up, I put on my panties quickly so the blood wouldn't run down my legs.
A few hours later I came home, and after taking a shower I put another tampon, with a pad on my panties, because I was afraid of the blood leaking again, but it didn't happen, my flow was not so intense anymore.
I want to know if bleed so much like this is normal, because I see on internet that has no danger of the blood leaking as long as you use the tampon for up to 4 hours.