Dear Anita,
Kalasarpadosha is a myth in astrology and there is nothing to be frightened about. Read “Myths and Misconceptions in Astrology” in our articles on http://navagrahastro.blogspot.in/ and shed your apprehensions about it. Then opt for a scientific evaluation of your horoscope at https://astrologymag.com/store?catid=4 and all your specific questions can be well answered.