(((Moreta))) - I commend you for posting this pic and admitting you have a problem. That's the 1st step in solving this problem and good you're going to your T. Usually hoarding has a psychological root -do you know what triggered this or what's the challenge behind it? An organizer could come to a hoarders house and fix it all, but this wouldn't solve it long term. Eventually they would fall back into the habit.

In the meantime I suggest you start separating - you can have a garbage pile, a save pile and a donate pile. If some things are in great condition, you could put them for sale or bring them to a consignment shop. When I spring clean, I go with the 3 pile idea - save, donate and garbage. The rule with clothes is - if you haven't worn it in 6 months, get rid of it. Do you shop more than necessary? If so, this is another part of the problem. Once things are organized, try to make it a rule to put things in their place. I tackle one room at a time and imagine a real estate agent is going to photograph the room. Best of luck and good for you.