@Phill007,
A full time job.
BTW: You're asking a lot of questions and since no one knows what country you live in or whether you are in school, out of school, orbiting in the International Space Station, etc... you're going to get vague answers.
A relevant answer to you isn't going to be a relevant answer for others. Share a little bit about yourself and thusly when people offer you advice, it can actually be kind of relevant to your case.