Is there a secret rapture with some left behind?

Is the return of Christ a secret “rapture” or is it more public and obvious? Is there one return of Christ or two? What is the general order of events at the end of the age? Do we need to re-dedicate our lives to Christ? How should we view a refocus later in life? Do I need to find church fellowship? Do I need to tithe to a church? Why will Jesus tell some churched people to depart from Him? Whom do I pray to - the Father, the Son, or the Holy Spirit?