@jpkarlsen Ok... so it magically works again, but I'm not sure what exactly I did to fix it. After taking it off of airplane mode, I put origin back into offline mode and turned off laptop mode in the graphics settings. The game then rebooted fine and I was able to load the main menu in about 30 seconds and into a household within about 2 minutes. I turned laptop mode back on to see if that's what the issue was, but the game still ran fine. I even tried messing with other graphics settings that I knew I had changed, and it made no difference in loading time. Loading time is back to normal. I don't think taking it off of laptop mode and putting laptop mode back on was what made the difference though as I did that several times through this whole ordeal.
The only thing I can think of that I changed since trying the last time was putting my computer into airplane mode and then turning airplane mode back off. A lot of the problems originally started when I was having issues with slow internet and had put my computer into airplane mode so I could use the limited internet I had to watch Stranger Things. I've done similar things before with turning airplane mode on and off and never had an issue like this before.
The problem with Origin making other programs on my computer slow has also resolved itself since turning airplane mode on and off. So... I'm not sure if there was an issue with airplane mode on my computer that caused this whole mess (you would think that restarting my computer multiple times would have cleared it from airplane mode though) or if there was some type of issue with airplane mode that caused an issue with Origin since Origin worked fine in offline mode, but not online while this whole debacle was unfolding.
Also you would think that if it was an issue with airplane mode, when I tested opening it with airplane mode on, the issue would have gotten better, but it didn't.
I really have no clue what happened to fix it, but I'm glad it's loading again.
As an unrelated side note, every time I load into a lot now I get an error saying a build mode item was removed even when I didn't have any mods installed and when I opened lots that I had not edited or opened before. That was happening a lot too before the whole mess happened, so I'm not sure if it's related, but I'm thinking probably not...