Well, I know the title is a bit vague, and this would probably fit better in the creators' forum, but I couldn't find a good place to put this in there, so here it goes...

With my fresh copy of the legacy collection in tow, a creative spark has awoken inside me. Now, I like freetime quite a lot, but Desiderata Valley is a bit... lackluster in terms of storylines and lore, especially compared to the base game neighborhoods. Where I want to come in is by making a version with a bunch of storylines and drama added in- and a lot of it is based on some snippets of lore from the original. Now, I remember that years ago, I tried to something similar with Veronaville, but I basically ended up just asking everyone else to do all the work. This is not going to be the case this time: I'm willing to take my time to learn what needs to be done. Using CroconawSims's Desiderata Valley with townies and npcs as a base, I plan on also...

-Restoring the ancestral sims that Tarlia deleted
-Changing memories, relationships, and starting wants to fit the new storylines
-Renovating some of the lots (holy crap, the houses in Desiderata Valley are BAD. Unfortunately, I'm not much better myself, so this might take a while)
-Various other fixes and tweaks (aka why doesn't Natasha Una have a pottery talent badge???)

To make a long story short, I'd like you guys to help me a bit by pointing me in the direction of some tutorials that might help me with what I'm trying to do. I tried looking up guides for making neighborhoods, but most of them are for creating new ones from scratch...