So stuck I may not accomplish anything at all today!

Ok So my executive dysfunction and task paralysis is hitting me like a tonne of bricks. I live on a boat and I have very little space and I want and need to declutter! I set my alarm at 10am for a phone appointment so I did one bit of adulting. But since then I have slept, browsed YouTube, watched Netflix, put off having a drink, took paracetamol eventually for the dehydration headache and now here I am at quarter past three pm having spent most of the day doing nothing. Please help guys! I need tips, advice, anything! I do feel overwhelmed at beginning and there’s no one free to body double with as that often works well. I’ve taken my ADHD meds and caffeine and told myself I can remain in my pjs while I sort out as it’s one less prep task but what now. I cannot begin! I hate this!!!!!!