Nothing major since I don't have major gripes and complaints about my life currently, but definitely go back to roughly winter 2020 and make sure I pack a CD storage thing I had that contained a bunch of PS2 games alongside other things as well and a 3rd part cheap memory card from Amazon into my backpack when my family had limited time to vacate a house we were renting. Would love to have my old saves alongside saves from my dad and brothers from some different games, alongside having certain games as well. Probably just get those games and the memory card.
That, or go back to when I was maybe 3 or 4 years old and my family lived with my maternal grandma just because there was some edutainment (possibly not and was a different genre) game on PC that had a pirate theme that I wanna know the name of and cannot remember for the life of me. All I remember about it is that this was still early 2000s and there was a section where you cleared/cleaned an area by moving things to where they should be, like a cannonball pyramid to the corner of the room. Probably would end up staying that whole day just to also have some form of memory from back then if I retain memories from going back in time.