over stressed!

I have been working straight since last Saturday. I also really haven't been able to get a good long hours of sleep. I observed that once I get so stressed I couldn't sleep. Tonight I was very happy that our teacher let us go home early coz I can get to bed early, but her I come still wide awake, its because my computer is not working. Its like have been paralized. I don't know what happened or what I did but all I remember is that I turned off the damn thin the other day so that it won't prevent me from going to bed early and getting a goodnight sleep. I wasn't able to turned it on last night when I get home coz I was too tired and don't have enough energy to sit in the computerm But tonight my mother texted me asking permission that she wanted to use my computer. She thought I put a password on it cause she couldn't see anything except the picture that a put as a screen saver. All the programs are gone, even the START that u see on the left bottom of the monitor. I told my mom to just wait me coz I don't have any idea what happen to my computer. When I got home I hurriedly went up here on my bedroom to check my computer. I am so pissed when I find out that I can no longer use it. Now here I am stressing myself too much by over thinking about my computer. Oh lord I hope my step brother can fix it tomorrow coz I can't handle without having computer and I couldt afford to buy a new one yet. Dang! I should get some sleep now for I have to get up early tomorrow and work. I really hate having this kind of problem. Usually when times like this my late husband is always in the rescue. Oh well, I'll have to do what I need to do.