Questions/concerns:

Answers

Thank you for your concern.  One who is not willing to obey God will not be saved. (Romans 2:7-9, 6:16; II Thessalonians 1:8-9; Hebrews 3:18, 5:9; I Peter 4:17)  Would you disagree with this?  Peter said in Acts 5:29, "We ought to obey God rather than men."  The man that first labeled baptism a work  excluding it from obedience dealt the world a great catastrophe.  Jesus said in Mark 16:16, "He who believes and is baptized will be saved."

My friend, I suggest that you obey Jesus, if you do not, how can you claim him as your savior?
 
How do I know I am saved?  I John 1:7-10 says:
  But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin.  8  If we say that we have no sin, we deceive ourselves, and the truth is not in us.  9  If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
Is confession a work?  Is it necessary for forgiveness for those sins of which we are aware? 
 
I know I am saved because I walk in the light.  I follow God's word, not the teachings of men.
 
This verse says that cleansing is conditioned on our walking in the light.  I John was written to Christians, not alien sinners.  One certainly does not need to be baptized every time he sins.  One does, however, need to confess his sins as he learns of them and seeks forgiveness.  
 
If we are to have forgiveness of sins it is only through the blood of Christ.  To receive the forgiveness that God in His grace (He gave His Son) has provided we must be walking in the light.  
 
Baptism places us in Christ, Galatians 3:27.  Baptism places us in the body, I Corinthians 12:13, which is the Church, Ephesians 1:22-23.  Can one be saved out of Christ?
 
The Hebrew writer tells us, 5:8-9:
  though He was a Son, yet He learned obedience by the things which He suffered.   And having been perfected, He became the author of eternal salvation to all who obey Him.
Can one be saved who does not obey God?   Can one be saved out of Christ?
 
If you consider baptism a work, why isn't repentance a work?  Throwing your argument back at you, John 3:15-16 doesn't mention repentance.