Astrological information/feedback has to be used positively in a mature fashion. One should consciously recognize the fact that astrological predictions can go wrong. Even if an astrologer did a great job with the horoscope of someone you know, there is no guarantee that he (or she) will be successful with your horoscope. Actually, even if (s)he did a great job with your own horoscope sometime back, he need not be successful in future! Astrological predictions are merely intelligent guesses - more intelligent (in the long-run) than your most intelligent (non-astrological)guesses.
If you have a good time, you may not hesitate to take a risk or two. If you have a bad time, be extra careful and be mentally prepared to tackle unpleasant situations. Astrology should make you robust, prepared and adaptive, rather than prejudiced.