Dear Gracebelle13~
Talking about the things that are wrong is very difficult, so I can understand how much willpower it has taken to come here, hopefully it is easier than anything else. It's a good move because others have been in the same place and would like to get you thought without having to experience the downsides they might have had. In my own case I left things far too long, trying to go it alone, which simply compounded my problems.
I guess if your friends, family and teachers have all been asking you how you are then they must all have some sort of idea of your present state. And I'd be pretty certain that includes your mum. After all not getting up, washing or anything is a pretty obvious sign you are in a bad place. Simply saying you are OK is not always that convincing, even if it does stop people talking for a while.
You are perceptive and have put your finger on the reason you have not gone for help. The idea of opening up to someone else, even a professional, is pretty scary, and maybe embarrassing too. You were able to put things down in text in your post. I've had similar problems opening up, with the additional reasons I was not sure I'd explain clearly, not forget things, or leave them out on purpose. I got round that by writing everything down and sharing the paper. You can write well and it is a lot easier. If all else failed you might just print out your post.
You mum might be worried if you told her how you feel, that's true. However I suspect she is already worried inside, and her knowing the problem rather than guessing would make things easier for her.
Nobody with any experience with depression, if they have had it themselves, or someone close has, will think in terms of attention seeking. It is only those without the life experience that might, and normally if they are caring sorts they will quickly come round to the truth.
Your life can get tons better,
Croix
