((((((((berries))))))))

I would assume that any good therapist would accept depression as a perfectly good reason not to do your homework. If anyone should know that depression is an illness and how impossible it can be for the people who suffer from it, they should. It's not the same but my university recognizes my depression as a medical issue and gives me leeway when I'm absent or can't complete my work. If a school recognizes depression as a medical issue, surely a therapist will.

When is your session? Is there time for you to do at least part of your homework, to show that you are trying? If not, what about contacting your T before the session to explain you haven't been feeling well -- sometimes it's easier to give them a heads up about these things ahead of time.

Just in case, I'll tell you how I explain my difficulties to other people. If I flap my arms really really hard, no matter how hard or how long I do it, I simply can't fly. Some days, no matter how hard I try, I can't get out of bed any more than I can take flight, grow an extra foot in height, or teleport myself -- it ain't gonna happen.

Good luck. Let us know how it goes.