go pinksoil! if you havent been writing in the last hour tell us why not please! (trying to help you be accountable to someone - would that help?)
i totally empathise with the depression fog messing up concentration. took me two years to do my masters instead of one cos i just couldnt concentrate. if its genuinely too much you really need to get some help with it. its ok to take time out and do that. if you can keep going though then go for it! this thing is due in in two days. two more days and you re done with it. you can throw it away after that and breathe a big sigh of relief. just two days to go.