And lastly, our church believes that we can loose our salvation. I've seen many other websites regarding this too. What happens

I don’t think we can lose our salvation in the sense that we lose our car keys. Our salvation doesn’t fall away from us and we don’t know it is gone until it is too late.

We lose our salvation when we make the decision to walk away from God. It should be clear to us that we are living for our own purposes and not for God’s glory.

We lose our salvation when we think that we can pray a prayer and keep living the way we’d like.
God is not some kind of strict schoolmaster watching our every move, hoping that we will do something slightly stupid so he can throw us out of heaven. God is a loving father who is doing what he can to make sure we complete this journey of life safely. He is watching over us and loving us every step of the way.

God knows that we are sinful people. God knows our heart. If our heart is set on sinning regardless of God’s teaching, we need to stop and ask what kind of salvation we have. If our heart is set on living for God’s glory, sin along the way is not the question.