:::Getcrunk has a very good point.  You almost certainly do not consider it a big deal to give out potentially identifying information about yourself but let me assure you it is a big deal.  I am sure you know how to take care of yourself but please do me a favour and sit down with your mother or father and have a discussion about this with them.  You'll think this is stupid now but in ten years' time, you'll realise this was good advice.  If you sit down with a parent and discuss this with them, I'll give you a barnstar.  This doesn't really have much value but you may get a kick out of receiving one.