amberlynraye95 If you don't have any mods, that part isn't relevant. Since the new save is fine, please try loading a different household within your main save and see whether you can save, travel, etc.
moofison The hat issue has been mods for every other player I've seen report back. Even if you don't think it's mods for you, please confirm that by removing your mods.
No one is saying every problem is mods. What we're saying is please remove your Mods folder to find out whether the problem is mods or not. If it is mods, and we don't check, we could waste a lot of time trying to fix the issue another way. If it's not mods, we can move on to other potential causes. Think of removing the Mods folder as a diagnostic test, not a cure.