dt1td, if you are 15 years old, why have you put that you are 21 in your information?
If this is a genuine request for information, your best bet really would be to use the search function. Everything will be on here somewhere. For people who have spent lots of time giving people uselful help and advice, it is a bit insulting that people can't be bothered to help themselves for the sake of a few seconds of searching.
There are some very knowledgeable guys and girls on here. Use them, don't abuse them by asking for the same information countless others have asked for in the past!