Plenty apprentices your age get hired. Some make it, some don't. The ones who do, have a good work ethic and willingness to learn. This trade isn't for everyone, though. People think, just because we get paid what we do, that they can make it in the trade. It's a great trade/career. You get to work with great individuals, and at times not so great individuals. For the most part, everyone will help/teach you, just as long as you show them you want to learn. Learn as much as you can, and work hard, but most of all "Work Safe".

Good luck!