>> How does the answer to that question affect what I should do today?<<
It doesn't, unless you wish to become a professional in one of the many fields which are served by an understanding of biology. Pitting biology against religion results in the exclusion of religious people in fields such as science education, medicine, nutrition, pharmacy, and of course, science itself.
I don't think there's anything keeping me from becoming a professional in one of those fields, except garden variety dumbitude.
Einstein said that science was thinking God's thoughts after him. That's not at variance with Catholicism as I understand it.