How do you think it feels for a 10 year old to be told they are "going to go to hell" because they dont share your rediculous beliefs?
Well, if you are like me, first you were scared, then you felt guilty, maybe a little sad, or frustrated. Maybe now you ask to yourself if they really had to be so cruel.
When I was around 8, my mother, a nice, intelligent, adorable person, told me exactly the same when I complained about having to go to church. Because, lets face it, it's boring as hell, especially for a child.

These persons aren't trying to hurt you. In fact, they care about you and are trying to help you. The problem is,
they are wrong. At least in Roman Catholicism, fullfilling a ritual is useless if it's void of any content. If you don't know why you are doing something and actually wish to do it, you can do all the rituals, and you're still going to hell. You have to
live with faith inside,
do with faith in your life,
and do all the rituals. That's why I gave up long ago

. Scaring childs is useless... no, it's actually counterproductive, because you associate negative feelings with something that's supposed to make you feel good.
So yes, I know how it feels. And I know they hurt you back then. And if someone from my religion did that, I apologize on their behalf.
I know it's hard, but do try to forget it, because it's ultimately hurting you, not them.