This is not trivial at all and is a terrible problem. I was recently diagnosed (about 5 years ago at 40) and my son also has ADD. We are both not hyperactive, we are primarily inattentive. It sounds like you could be too? My pdoc told me that people with this type of ADHD tend to need a fire lit under them to start projects. Not out of laziness but because our minds just don't process information the way other people's do. I know I always miss the small details in things and it gets me in trouble. With the clutter in cleaning I don't see things (like paper on the table, or a sock on the floor) on an individual basis. I see it only after they pile up into a big overwhelming mess. Then there is a wave of adrenaline to get things done but I don't know how and get frustrated.

My friend taught me that the best way for me to work with clutter is to purge and throw things away (or donate) constantly. I just try not to let things accumulate.

But to get to this point, the best help I've had is medication. You say there isn't help where you live, but do you have a primary doctor who can prescribe you something? There is a lot of misinformation and stigma attached to stimulants, but when you have a real diagnosis of ADHD of any kind, it is usually the best help available. Over years the ADHD will lead to anxiety and depression, so it's no wonder you're overwhelmed. Even if you can't get anyone to give you a stimulant, Wellbutrin or Straterra (and SNRI) are used as well, so maybe a doctor could help you there?