I got a membership with Gladiators Academy!
(http://www.gladiatorsacademy.com/)

I'll be probably be taking boxing and BJJ. Within' couple of years or so i'll take MMA. Im 14 BTW.

The question is: My mouthpiece doesn't quite fit me. I remember reading something about boiling them....How would I go about fitting it?

put enuff boilin water in a bowl enough to cover the whole mouthpiece,submerge it for 10 seconds,take it out with a metal spoon,put it in sum cold water for 2 seconds,then put it in ur mouth and mould it to the shape of ur teeth,dont leave it in the water 2 long or it might melt

and if its pressin against the back of ur mouth,trim sum off the end with scissors

Ok, from new:
- Boil some water.
- Pour some of it shallow into a container.
- Put the mouthguard in there for between 8-12 seconds.
- Take the mouthguard out. This is why you need the water to be shallow, because you are putting your hands in it.
- Rinse the mouthguard out and take any water away
- Put it in your mouth and make it stick to the top of your gums as far up as possible. Then bite.
- Take it out after you have done that... now everytime you wear it, it should fit perfectly.

- If not? Repeat this process.

Thanks guys. I'll be doing it this afternoon.