Should we trust in vedic astrology?

1)Can pallas, vesta, ceres, juno, chiron give strong influence in my birth chart? 2)I have 4 degree moon in cancer in 8 house and my cancer is in 9 house cusp..it means my moon in 9 house also relevant? 3)Are north node always retrograde? I have north node scorpio retrograde..

I am adopted child, skinny and eat a lot.. People always complain about me being skinny and force me to eat a lot.. Astrology said I have large bone and tendency to put weight easily.. How can I put weight and be muscular Any idea?

What kind of foods and drinks for memorized something what I see and learn very fast?:) What kind of foods and drinks slow my memorized?:(

Are planetary times influnce my birth chart everyday? If planetary times is saturn, thats mean my saturn 5 house and saturn pisces affected?? Are planetary times and birth chart separate things?_?