“One person esteems one day as better than another, while another esteems all days alike. Each one should be fully convinced in his own mind.”
When God filled the earth with people made in His image, He filled it with a myriad of people who are vastly different. Our differences are not wrong, even though people may be inconsistent with each other. Rather than burn yourself out trying to compare with others, you should strive to be fully convinced in your own personal convictions.