The Psalms have plenty to teach us about how to pray. 

Perhaps the most striking thing about Psalm 44 is the rawness of complaint and accusation against God. Clearly a person of faith must be "allowed" to express their feelings - both in contentment and in anguish. We usually gravitate towards praise and worship, but it is OK to be honest. In fact, we realise that complaint and lamentation can be an expression of faith.