Feeling low

Sunday, beautiful sunny day and for the first time in months a clean room! And yet here I am, listening to Like a rolling stone and feeling down. I have my French books on the table, my homework waiting and a beautiful book to read but in my mind everything seems dusty, grey and sad. I have suffered form depression for so long but this is one of those days that hit you hard. I had gotten used to the sadness and if I were to have a goal that would be not to get used to the sadness: "Rage, rage against the dying of the light".Right now, I am trying to come up with some sort of defense system: setting goals, fighting against it, letting it be..However, I am pretty sure that listening to sad music won't help...i just don't know where to start :(