Don't compare yourself to others who call themselves Christians.
Compare yourself to Scripture.
In this present time, the term 'Christian' has become more of a classification rather than a character. Being a follower of Christ in this modern society has truly become a tough road to tackle. But with the strength coming from God, all of the hurdles in life can be easily overcome.
The world might have set a standard of Christianity, but always remember to test everything you hear with the word of God. The Bible is our instruction manual on how to live our life here on earth, so we must mold ourselves with God's words and and not with what others tells us.
There are times, when we feel like we are drowning in a deep crisis, we find it impossible to survive. We even feel hopeless and just succumb to the storms of life.
But we have to remind ourselves that we have a great and mighty God who can deliver us and save us from troubled waters. He is our rock and our source of strength. Just cry out unto Him and He will answer your prayers.
Jesus loves you. Regardless of who you are and what you've done, He will always love you.