Let me clarify something. I'm not saying that a Christian can't ignore the leading and guidance of the Holy Spirit. What I'm saying is that it's impossible for a Christian to sustain the same heart relationship with sin that they had before being saved. To be saved the Spirit becomes one with God. They can certainly be lead by their flesh which should be considered dead and must be crucified daily.
& closer in keeping to what JesusistheChrist is saying, i believe that we are crucified - past tense - and that we daily "take up" the knowledge and awareness of this, bringing our flesh into harmony with it, because our life is now towards God, by the Spirit, and our duty for the sake of righteousness is to live lives here on earth "worthy of the high calling" that we've received, as Peter put it. to act in a way that reflects who He has made us in Him involves considering ourselves crucified, but the active force here comes from God, apart from us, as a gift from Him.
does this make sense? i don't think my words & phrasings are "perfect" in any way either