I had a rather disastrous experience with two astrologers who claimed that I had ruined my career by not going for medicine. Anyway, apparently I am under Rahu Mahadasha till November 2018 in the eight house with Sagittarius sign, aspected by Jupiter and ketu. Normally being a rather rational person, I don't believe in all of this but I admit I have noticed a number of mental tendencies as apparent under rahu mahadasha - indecisiveness, prone to melancholy and anxiety. I am very determined, level headed on many occasions but I am also a bit too emotional and confused, anxious types - this nature has been there since my teens although I have seen some improvement recently. I haven't done as well as my peers thanks to lack of confidence, indecisiveness and poor planning. My mom kinda believes in it but I am skeptical and they suggested using gem stones like panna and gomed. Is this stuff actually true?