Romans 12:2 - Do not conform any longer to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is - His good, pleasing and perfect will.
Our minds have been conditioned to think a certain way. From the moment we are born the world is trying to dictate what we think and how we live. It’s gotten to the point where they are not only suggesting a certain lifestyle, but they are doing their best to influence you sub-consciously as well, where your defenses are low.
Society wants to tell you what you need to wear, to eat, to drive, you name it, they want to control it. It is played off that if we have the latest and greatest of something we will be accepted; and we buy into it. In reality there is no possible way to maintain this lifestyle and it will only leave you frustrated and wanting more.
God calls us to something different; He calls us to something better. He says, “focus on me and seek first my kingdom and I will take care of your needs.” If that is true why are so many Christians still being influenced by the world? It comes down to our minds.
We have been in this world so long, unaware of how it has been conditioning us to think. Half the time we don’t even recognize how it influences us. That is why Paul tells us to renew our minds. Renewing your mind will transform your life because you act according to what you believe.
If you believe what the world is telling you, it will show in your actions and vice-versa, if you believe God it will be reflected in what you do.
So in answer on how to combat the influence of the world, seek God. Ultimately that is it; that is the answer. Beyond that, make sure you are putting more of the Word in your mind than the influences of the world.