Simply put, this commandment means are you putting God first in your life?
Have you acknowledged Him as the only true God, worshiped Him, put Him in
high esteem, honored Him, and submitted to Him your whole being, being
careful in all things to please Him?

Jesus said, “And thou shalt love the Lord thy God with all thy heart, and
with all thy soul, and with all thy mind, and with all thy strength: this
[is] the first commandment.” Mark 12:30. Anything that you put before
worshiping God breaks this commandment.