Structured content is web content that can be understood by algorithms. Semantic HTML is understood only by humans using webpages directly and not by voice assistant or equivlant.
The both work together to get the information to the user as clearly as possible.
It is important as you want your website/it's information to be accessible as possible.
I think giving myself credit for what I've already done would work the best because I don't really do that now.
Hyperbolic discounting is where you go for the "sure bet" in the current times, and leave more uncertain tasks for future you to deal with. One of the possible solutions mentioned was to turn off your internet for a certain amount of time so you can focus. Probably having strict deadlines would work the best for me.