Rooms which are adapted to depressed people make me depressed, what should I do?

Rooms which are prepared by interior designers to adapt to depressed people, strangely enough make me feel depressed. I like happy things and happy colors but the interior designer said, it would be not good for depressed people to have such objects or colors in a room where depressed people are treated. So I changed the room to adapt to the designers ideas. But now the room makes me feel depressed and I do not like working in it anymore.