Ok, I really want to build a solar panel to heat my room, but i have no clue how they work. I know that they collect energy from the sun but other than that I'm totaly out of it.

Solar-powered heating can be done as simply as constructing a glass-enclosed box painted black inside and ducted into the room you want to heat. Maybe you would need some fan to blow the hot air from the box into the room but I'm not sure. I also don't know how well the box would need to be insulated or how effective such a system would be given your outdoor temperature. If you get creative and come up with designs, it would be interesting to see them posted.