Something to think about.
If
2 And all these blessings shall come upon you and overtake you, if you obey the voice of the Lord your God. Deuteronomy 28:2 

15 "But if you will not obey the voice of the Lord your God or be careful to do all his commandments and his statutes that I command you today, then all these curses shall come upon you and overtake you. Deuteronomy 28: 15

You will live out one of these two verses. You will be blessed or cursed depending on the "If." Notice it is not optional, blessings or curses will overtake you. You know people that have been blessed, and you know people who have been cursed. If you can look beyond the portrayed facade, you will find these verses lived out in astonishing clarity.