I have gone through this so don't think you are alone in this. I think it is hard because you mind is so focused on other stuff that just the everyday things are pushed away. For me it was a little easier because I had my Mom to take me by my hand and assist me in most of those things. Now you make think that sounds really weird, but a little background about myself is I am a 16 year old kid as well. So having my mom motivating me to brush my teeth and hair, and get into the shower is a little more normal. As for you I do agree with raging vortex in taking small steps with things. Try and set a schedule on when to do certain things and space them out as not to get too overwhelmed with too much at once. I am not going to say it is easy, but if you do it a little at a time by days end you can accomplish it. Good Luck.