I'm a 15 year old male. I've been struggling with smiling-depression for 3 years. All of my energy and motivation is drained, I can't feel any emotions inside myself; only sadness and empthiness. I've even reached a level which I'm not able to attend my classes anymore and I force myself somehow to do so.

When I'm alone my feet and hands get as freezing as they can, I can't think properly. No hobbies can cheer me up no more, and I don't express my feelings as I don't want my parents to be worried.  
Y'know what's tough about smiling-depression? Even if you tell someone about it they literally won't believe you! They'll just mock you and it merely leaves you frustrated Just have to be silent and burn inside until I turn into dust.

&amp;#x200B;

I don't know how to seek help and I'll be so glad to get some advice. Dead inside at its fullest that I can't even fully tell what kind of situation I'm stuck in. Thank you in advance.