If you have gone to the altar time and again to get saved expecting to feel something, yet felt nothing, you are operating on the wrong wavelength. You are looking to feelings instead of reasoning to become saved.
Salvation is never dependent upon how one feels, but upon what one believes.
You see salvation is a gift, and it does not depend upon you. You believe in your heart, which is your spirit man. Never does the Bible anywhere say you must feel something to be saved. You may or may not feel anything. The key is to believe.