Just something i heard on YouTube said. So as the questions state:
1. Do you believe in souls?
2. If you believe in souls do you believe they determine what sex you will be in real life?
by Soul we mean: the spiritual essence of a person, which includes our identity, personality, and memories that is believed to be able to survive our physical death. so identity can include ones sex in life. The soul is usually defined as immortal and exists even before your birth and after you die. https://en.m.wikipedia.org/wiki/Soul
so then when you are born in life does the soul determine your sex for life?