I don't remember the password to my iPod

I just charged up my iPod, but now I can't get past the lock screen without getting locked out for more and more time. I searched up ways to get into it, but all lead to plugging it into my computer and erasing everything. I'd gladly do it, but now I don't know if all the data is saved or not. I switched from an iPod to an Android so it feels like I'm stuck. Is there any solutions to this such as checking if my data is saved, or a way to not erasing anything?