I've been smokein pepspice for 2 week will I stillbe able to get clean fast I smoke a bag or two a day

STOP IT NOW. spice, pepspice, K2 and whatever else it is called (herbal incense etc.) are all dangerous forms of synthetic cannabinoids which are much more potentially dangerous than marijuana itself. They have been associated with psychotic episodes, some of which don't go away, seizures, kidney failure and death. Stop and get help stopping if you need to. Contact your doctor or a treatment program now.