2/6 c1 52master's apprentice
A very relatable sentiment, however I think delving into the topic a bit more would benefit your poem. Its very simple, it doesn't explore any of the writers feelings - they can't write, are they frustrated, worried? There just doesn't seem to be a significant point or punch to the poem right now - I can't think of anything, I try to think of something, still can't, I'll try tomorrow.

I need something to help me identify with what this person is going through. You hint at this in the ling "my mind starts to force an idea, but its pointless." - why is it pointless, are the forced ideas hollow, without passion? I either need some emotional point or some clever wit to give the poem some depth.

Another thing that would help is more word or phrase variety, there is a lot of repetition throughout the lines (idea, mind, my mind) the repetition doesn't appear to be used in a poetic way, it reads more like you couldn't be bothered to expand the vocabulary of the poem and that makes it less interesting to read.

here is an example I have tried to keep as much of your original wording but substitute words or phrases to remove repetition just as an example of how word choice can affect how a poem reads

I sit at my desk, trying to put ink on paper.
The ideas don't want to come.
I wonder if my brain will ever spark again.
Surely, there is something I can write.
Although, nothing comes to mind.
I try to force an inspiration but, it's pointless.
My thoughts are vacant, dreams nonexistent.
My thinking starts to get tired and it's getting late.
Perhaps, I will try anew tomorrow.