How to put a tampon in for the first time?

Okay so I've been looking at videos and stuff and they tell me to put it in by an angle and they make it sound easy but whenever I try I'm really scared and it hurts and I can never put it in. I don't know which way to put the angle either. Like how do I push it in without it hurting and do I do it fast?? HELP PLEASE!!!?! I'm in 7th grade btw