My layout is gone 4 no reason, I don't know why >:(

I was offline for 3 days and when I came back online, the layout and almost everything was gone. I don't know what happened. Now I'm trying to get it back to the way it was, but it might not be 100% (I'm not really serious about this, I just feel a little hopeless ·_·;) I'M CRYINNGG｡ﾟ(ﾟ´Д｀ﾟ)ﾟ｡