3DS won't turn on the way it should.

So before this, I was having problems that my 3DS won't open any applications or programs on it. Now, I left it alone for a while, and when I try to turn it on, The blue light will turn on, the screens would brighten black, but it won't load. And when I turn it off, I have to hold the power button. It doesn't seem to be at low battery, not that I've charged it though. So please, does anyone know what's going on???