Salvation and Sanctification are the experience that everyone who wants to make heaven and succeed as a practicing Christian must have. They are the bedrock and the pivot on which our walking with God rotates. If not guarded and guided jealously, that might be the reason for someone's eternal weeping and gnashing of teeth in the Lake of Fire.
Everyone saved and sanctified will know that he/she is saved and sanctified and everyone not saved and sanctified will also know by the fruit they bear.
Coming to the Church to fellowship is good, but that does not mean you are saved and sanctified. Bearing Christian names or being given birth to by a pastor does not mean that you are saved and sanctified. Salvation is only found in Christ Jesus after you have confessed Him with your mouth and believed in your heart that God raised Jesus from the death; because what some peoples' mouth is saying may be different from what the heart is saying, both must agree according to Romans 10:9-14.
Therefore, work out your own salvation in fear and in trembling. Phil.2:14.
You are blessed as you study this manual in Jesus mighty name.