Getting motivated to lose weight?

i need to lose some weight but i am not really motivated to do anything, i suffer with clinical depression and because of how i was bought up (i was never encouraged to do anything and other extensive issues) i just cannot seem to get motivated to lose weight, ill manage one day but thats it =( it makes me angry inside about it i just dont seem to be able to stay motivated long enough to do anything about it =( can anyone give me any suggestions on how to get and stay motivated please?