You have asked many questions and I will try my best to answer some below. Kindly note that the Girl has Mars in the 7th house which makes her mangalik. You are not mangalik. The ashtkoot guna milan is 19.5 out of 36. There is 2-12 Bhakoot dosha. For cancellation of these dosha I need to study both the charts in details.
If you want a detailed Guna and Graha milan please look at Horoscope Matching Kundali Milan at the link below.
Blessings,
Navneet Khanna
Vedic Astrologer