According to expert gerontologists, Rolling Stones' guitarist Keith Richards (a Sagittarius) should have passed on to the next world a decade ago. The man has abused his body so thoroughly, his continued survival is a mystery. You're currently in an excellent position to achieve equally stupendous feats of persistence yourself, Sagittarius.
More than ever before, you have a dogged capacity to keep pushing -- even in areas where you've been flighty or sketchy in the past. I'd say this is an excellent time to deepen your commitment to your dreams in very practical ways.