forgot my itouch passoword

My boyfriend was messing with my itouch and changed the password at complete random so he has no idea what it is either. I was thinking about restoring it, but i'm not sure if that permanantly deletes all my photos and progress in my apps. If I restore it, will I be able to bring back every single thing as if this never happened, or will some of my data be deleted. Please tell me if there is another way to get onto my itouch without having to guess the password or end up having some of my data deleted. Please and think you