tampon questions

I’m 13. so I just started wearing tampons yesterday, and I knew I wasn’t going to sleep more than 8 hours, (I have cross country every morning) so I went ahead and slept in it. It was scary taking it out but I was ok. But is it bad to sleep in them? And if I have a light flow, using the lightest absorbency, can I keep it it for longer than 8 hours? Also, when pulling out a tampon, is it bad to pull fast, or should I pull slow? Often I have to take breaks because it tickles, and I’m new at this.

Edit: thanks guys! Also, I pretty much taught myself, using wikihow and tampon company instructions. The only problems I had were I was not in the right position, so it wouldn’t go in, but if you are trying tampons, I recommend standing, with your right leg (or whichever leg) and making it a 90° angle. Applicators help a lot too.