Faith is a funny thing.  You either have it, or you don't.  

The Bible says that, "So then, Faith comes by hearing, and hearing by the Word of God."  Romans 10:17  You can't have faith in something you haven't heard about.  So hearing is the first step.  Read history.  Read.  Read.  Read.  

Then, you have to believe that what you are hearing is true.  Some people never get past this point because they attach themselves to a lie, and can't move on They are emotionally stuck where they are.  Changing their minds to admit that they are wrong would imply that they were stupid, and they just can't go there.  Get over it.  Move on toward truth. Truth is always true.  Never changing.

I can't tell you how many times in my life someone has told me something that wasn't true.  If you look at Facebook, you will find a zillion stupid things touted as truth.  Then repeated over and over again until there is an entire following of people (group of buddies) who believe and place their faith in what they are telling each other.  Doesn't matter if it is true or not. They support each other's opinions.  They have a following and they gang up on people who disagree.

Never disagree with a crusader who is headed in the wrong direction.  They are bullies. They will try to run you over with loud words.  

Now, Faith is the evidence of things hoped for, the evidence of things not seen." 

Hebrews 11:1  So look for evidence.  I hope you aren't depending on Facebook.

Read, read, read.  Then examine the lives of people in the world.  Who lives in peace.  Who loves and cares for people.  Who is fair.  Who is honest...etc...you know what I'm talking about.  Yes, the church is full of hypocrites.  So is the world.  But in the middle of all that are people who are living the Christian life by faith.  And their lives are the evidence.  It gives me hope for the world.