Instead of making something simple and easy, I decided to make my biggest beer ever. I pushed my system to its edges, and that made me learn what I need to do to fix a) my brewery, b) my knowledge base, and c) my ego. I didn't even bother with a dry run to get everything in order. I just jumped. But it was a good jump since it forced back many memories and also immediately identified the small things I need to relearn. Like remembering to calculate the top-up water needed before the boil, rather than stressing about calculating dilution water in the fermenter when I'm a gallon short and 40 points high on OG.
I based my recipe on Project Dank from a local brewery, La Cumbre. I am now basing the rest of my existence on getting my brewery up to snuff. I did stay fairly current with the knowledge of the hobby - I still read every issue of Zymurgy and I always stay in contact with homebrew shop websites as well. I think I won't have too much to catch up on.
One big issue I had was Promash, since that was my software. It took some time to get that working again, but I lost all my recipes from the number of computer swaps I've gone through in those years.