HN user
The main things that ever helped for me are regular meal times, regular wake up time, gentle relaxation exercise before bed and a sleep monitor app on my phone. Phase change is a common issue with tech people. Some prefer to shift later and later and wrap around to the target schedule. Ultimately your body should tell you if things are going wrong.
Where I work, most of the staff have partners - girlfriends, boyfriends, husbands, wives. Just because one girl can't see a girl like her or people she knows being interested in you doesn't mean the end of the world. There are lots of different kinds of people making the world go round. The more different places you go, socialise, interact with people, the more you are likely to meet someone who might be into you.
I have Projects, Details, Media and Mirrors. Mirrors are computers (whole drives), archives (mainly of retro stuff) and websites (usually my own). Media is divided into Books, Audio, Video, Music, Pictures and so on. Projects I divide up into academic, coding, creative, games, there are a few others. Details is where I keep admin reminders, dotfiles for various systems, common admin address book, stuff like that. I tend to have Details on all the systems and keep it small, then specific bits of the rest when I use them. Well, in theory, I am also in midst of organising it all.