Repentance means to turn your back against sin. That does not mean to pick your old habits back up. This is not being clearly defined by many pastors, thus creating a cheap grace that says Jesus died so we can do whatever we want. That is a slap in the face to the One who loved us so much to give His life.
I found this on Facebook, and it gives an accurate definition of what “fake repentance” is. It is not real repentance at all. If this is you, God can bring true sorrow to your heart over sin. Don’t fake it and “turn over a new leaf”. Let God change you from the inside out.