Help, I'm in Hell!

Right now I am writing about Animal Rights, not for this Blog.
Well, I am supposed to finish it soon but I cannot.
Unfortunately I am still not 100% out of my winter depression.
Not having much concentration
whenever I am in the depressive mood,
writing a long piece can be extreamly difficult.
Actually it has already passed the deadline and I still cannot start.
Last four deadlines were always like this, painfully frustrating
and I even had developed horrible mouth ulcer
because of the great deal of stress,
which means I could not eat or talk for a while.
At least this time that is not happening to me.
But still cannot start writing, so frustrating.
God, please help me!