I'm the only one in my family who's still up #1AM

What if in a parallel universe we can time travel and our parallel selves time travel and do TINY LITTLE things; like turning your alarm off so that changes the outcome of your day and therefore the outcome of our future. BUT we can't see our parallel selves , it's like their ghosts or something. But the point is what if they come back later and change things so they go differently? What if our selves in a parallel universe can somehow see our lives and know the outcomes of different things- so they change little things to change our outcomes. What if the "horrible situations" everyone has been through are really actually good for us? Like what if the other option was so much worse and our selves from a parallel universe (with time travel) are saving us from that? I guess what I'm realizing basically is that it could always be worse. But who knows. This is probably just me ranting to myself