If Jesus is not God in human flesh, nothing matters. If Jesus is God, sent to us in human form who died for all of our sins and rose again then nothing else matters. With His apostle John, faith in Him is commitment. John was not interested in nice believers—only in committed believers. Christianity is not knowing certain facts; Christianity is living a life.
Our faith in Christ and in who He is has nothing to do with religion or the “orthodoxy” that goes with religion. The faith that we live by on a daily basis is what matters. If your faith can’t stand up to daily life, then you need to pray and ask God to show you what may be hindering you from His service.
In our daily life, we can choose to follow the crowd or to lead by example. Our example is Jesus and we should be striving to be as much like Him as we can but we can’t do it on our own. We have to rely on the power of God and His Spirit to enable us to do things which we cannot do on our own and with our own strength. He will enable us to do exactly what we need to do for Him and through Him as long as we are following Him.