Repentance - what is it?

When many of us believers think of the word Repentance, we think "feeling really bad because we sinned," "promising God that we will stop sinning," and "making the decision to live a holy life from now on." But did you notice that there is no Saviour Jesus in this equation? It all rests on you. Jesus does not do anything here. This is a Judas kind of repentance - towards self and not towards