Welcome back to the hobby, and welcome to the forum!
If you haven't already considered it, I recommend getting some kind of magnifier. I use an Optivisor, and when I picked it up, I immediately wished I had gotten it five years before. It made it possible for me to detail work again without having to hold a piece at arm's length.
What kind of sci-fi models do you build? I build Maschinen Krieger kits. I like the look, and at 1/20th scale, the figures are easy to work on, and the finished models don't take up too much display space.
And for refreshment, I spend summer evenings in the beer garden
I look forward to seeing your builds!
Best regards,
Brad