You should do what you think is right go with your heart and mindset don’t just do something cause others are doing it or cause you think you want too. You must take the chances for some you really wanna do it is called life choices. Try making the best choices as much as you can. Stay positive.
Some of the peoples it conquered didn't want to be ruled by the Incas and were rebellious, mainly, and it was so big that it couldn't keep the conquered in line very well.
Religions like Taoism and Confucianism have Hindu influence, while Islam is a relatively new religion itself.