I agree, take some of the length off to just below the shoulders, get some shorter layers cut in and maybe for a change, get a semi permanent colour (this will just wash and fade out over time) or some foils if you can manage the up keep.

I *personally* think that really long hair can be quite aging, so I keep mine about shoulder length these days with lots of layers.

Go for it, it's only hair and if you don't like it, it'll grow back. With a new 'do you'll feel like a new woman.