I was in, or am in, a very similar spot. I've struggled with depression to the point where I got almost nothing done with work. I had the same fear you did about dulled focus, but you're right: it is silly to worry about that if you aren't productive already.
A few months ago I went on Prozac. I still struggle with focus and getting work done and there are some other negative side effects, but crucially I am able to think more clearly about the situation. I'm now working on strategies myself to get myself to a better place long term.
I'd advise taking the medication -- it's unlikely to put you in a worse spot, and very likely to put you in a better spot. From that better spot you will see more avenues you can pursue.
A few months ago I went on Prozac. I still struggle with focus and getting work done and there are some other negative side effects, but crucially I am able to think more clearly about the situation. I'm now working on strategies myself to get myself to a better place long term.
I'd advise taking the medication -- it's unlikely to put you in a worse spot, and very likely to put you in a better spot. From that better spot you will see more avenues you can pursue.