Whatever the Lord will have us to do (1 Corinthians 6:3 KJV, 2 Timothy 2:12 KJV). My suggestion to you is be saved by trusting the Lord believing the gospel that is the power of God to save you (1 Corinthians 15:1-4 KJV) and begin to come unto the knowledge of the truth (God's will for all men 1 Timothy 2:4 KJV) in the form of sound words that we have heard of Paul (2 Timothy 1:13 KJV) in Romans through Philemon which is written TO the church, which is His Body, the Body of Christ (Ephesians 1:22-24 KJV, Colossians 1:24 KJV) as it is a wise masterbuilder Paul's foundation that we must take heed how we build upon for reward (1 Corinthians 3:10-15 KJV).
I have dedicated my life to doing God's will and spreading the good news of the Kingdom (Matthew 24:14). I believe that if I died right now I would be saved, to live again. We must "endure to the end," of our lives or of the system (Matt.24:13). I have finally found the truth, after years in the churches of the world.
People who are anointed to go to heaven know exactly what they will be doing. (You say you know you will be ruling as a king; ruling over what?)