I get overwhelmed with so much clutter. So I use a room or space to use as a sort of "storage" I place my paperwork in a plastic trash bag so I can have it readily available if I need to look for any important paper work or mail. I box up or neatly sort of put anything in a corner. Right now, my living room is simple and clean and in the office it's a disaster (sort of) It's a "neat type" of disaster, though.

Can you do something like this? It gives me peace of mind and I just try to focus on my space I live in instead of the clutter. Clutter will always build up and you can work through it when you feel better, even it means it might be a while. Like they say, Baby steps...
You can even box things up temporarily. I do that. I helps to not see the space so messy.