How fast can you change?

They say if you try to make too many changes at once, they won't stick. Is this really true? Well I've been trying to make lots of changes so far this year. And while I'm finding that it is true I've lacked the appropriate focus necessary to change one habit while attempting to change many at once, there is a change taking place within me. So maybe, just maybe, it is possible - not in actions, but in attitude. And I'm finding that I am looking at things a little bit differently each day, with a greater impetus to make those changes happen. And, any lasting change comes from first changing your frame of mind, doesn't it?