Adhd late diagnosed here.
Its totally fixable, I have just done it and its life changing.
Heres the thing. You do not have to change. You have two options - change the environment or adapt the task to make it more palatable. I'm exactly the same person I was and yet I'm so much less stressed because the system works.
I listened to a lot of podcasts and really recommend doing that - can be listened to while cleaning, even better.
Clutterbug is good - she has a quiz on organising styles and tips.
Laundry baskets at the point where clothes are taken off. Folding things straight off the line. Or put things on their hangers to dry. Delay start a lot on the washer so the clothes can come out of the machine in the morning, another load can go on, then by evening the first load is dry and be put away. Alexa reminders.
Charity and the dump and anything worth selling is sold.
Pick a space. Set a 10 min timer. Declutter. Get everything out of the space and sort it into categories. Not used it in 6 months or more? Consider if you need it. Then put things back organised using the categories. You might use boxes and a labelling device etc.
Have things that catch mess. A basket in each room for stuff that doesn't belong there and is in transit back to other rooms. Take a full basket from room to room and put things back.
Tray for paperwork and a place where it gets done etc.
Some people love clear plastic fridge organiser's (Dunelm have these, they also do white boxes for storage).
A charging station for devices.
Part of my early evening routine is to go round and plug in whatever needs charging (I have a list of what they are).
My weekly schedule is written on google calendar as events with time blocking and more detail in the notes of the event.
You're not alone as genuinely I think many people just have too much stuff.