Salvation is incredibly simple, yet it unfolds with amazing complexity at the same time.
Like nature, the closer you look the more you see. The evidence of the Holy Spirit is in what you say and what you believe. So, if you agree with God about your sinful condition and willingly and openly say so, and if you actually believe that the resurrection of Jesus Christ has brought you salvation, then you are already saved. But that doesn't mean that saying the right things or believing the right things will cause you to be saved. Only God causes people to be saved.