Am I a Believer or Disciple

I recently had a chat with a pastor regarding the above, specifically the difference between being a Christian believer and being a disciple of Christ. What I learned from that and from listening to some recorded sermons on this has been enlightening. To become a saved member of the Christian church simply requires belief in Christ. Now this belief is more than head knowledge; the demons know Christ is the Son of God. So then, what does saving faith look like, and what is the difference between that and being a disciple? This will take time to cover completely, so I likely will address it in pieces. This is important to consider because it seems to me that some of my Christian brethren are rejecting the idea that someone can be saved if they still have sin in their lives. For me, I assumed that all should desire to become disciples of Christ, making sacrifices along the way throughout our lives while seeking to grow more close to Christ. Sadly, this is not always the case. In the past, I have always interpreted the believe phrase in John 3:16 to include follow. I now realize that for some, that does not enter into the picture.