Fire of Unclutching

While chanting Aum Haam Haum Shivaya namah, visualise Shiva or Guru burning your ego (bhasmam daggum sariram), and associated desires, feelings, imaginations or visualisations, 

thank Shiva for purifying me. 

Another way is feeling I'm sitting in fire 🔥 

Another thought: After I think of - or visualising any past or future conversation, Chant like above and burn associated Visualising in fire of Tapas.