This is me too, particularly the rabbit hole of trying to get things tidied or organized or put away. It take so long and I create more mess along the way, and actually get quite worked up and upset sometimes because I worry about whether I should keep something or throw it out, or where the best place to keep it would be.
Also half-done projects! I lose interest and momentum. So many half-made seeing projects (important thinks like curtains, not just fun hobby projects, although those too) around the house...
With work and academic projects, I do much, much better with tasks that need to be done straight away. A long deadline is the worst thing for me, as I'll procrastinate, or start but get incredibly stressed and worried and make the task more complicated. And there are things that my brain is very good at, like learning languages, or organising an argument/fighting someone's corner, which I can just do, and then lots of other things that seem very difficult (and are probably totally doable, but require more effort), which I feel I can't do, and give up on.
Also I'm another one who has been surprisingly (to myself!) good and clearheaded in a crisis when other people have needed help. Probably less good at helping myself. ..