How do I use sage to cleanse my home and protect it from negative energies, spirits, and entities?

Name: Riya. DOB: 21 January 1992. POB: Mumbai, India. TOB: 6:15 AM.

I've been feeling like my apartment has heavy energy lately. My grandmother used to burn sage when I was little, and I remember how peaceful the house felt afterward. I’m thinking of trying it myself, but I don’t know the proper way. Do I just light it and wave it around, or is there a specific technique to cleanse my aura with sage? Should I say something while doing it?