I just want to share my achievement here. I started a project to study mathematics to help up childrens in my city and, in order to start this project (not really start, I have already started it, this is not that famous case of “preparation” that is procrastination) I decided to build up a collection of books, exercises and everything else. Of course, just like any DataHoarder, I went a bit too far, downloading books of Higher Mathematics, Physics, Portuguese (my native language) and everything else. Anyway, I'm a NEET and I spent about 5 to 6 days in this non-stop job of hunting down pdfs, exercises, digging into Internet depths and seeking out guides, charts and everything else, but it all worked out, after a week I finally have my collection, all organized and sorted, and now all that's still left to do is backup it physically, put it in the cloud and all that boring paperwork. I know there's no big deal , but working on storing data for a week isn't a bed of roses, it's very boring, I had to miss out my neet hobbies.