That urge will wane the longer you stay away, disconnect, cut all the many strings both social, psychological, intellectual and emotional and continue to learn the tatt.. however that little tug in the mind can last your entire life..
Mine did for over 30 years because I did not have the right information or a real overview of the organisation, what it really is and how it operates with it's deep brain washing techniques. Accurate knowledge and getting to really see 'behind the curtain' helps profoundly in the liberating/deprogramming process and can speed things up massively.