New Layout

I think I have finally found a layout I like (and if you cant tell I am REALLY into black & white right now). What I have found out this morning while updating my layout, MANY times, is that every time you change your layout it deletes everything you previously set up. Or there could always be the possibility I don't know how to keep my changes and update my layout at the same time. So my layout will stay this way until I absolutely hate it.