Why does Metta leave me feeling profoundly alone despite aiming for connectedness?

I fight with the sense of profound isolation and depression. At the time of my meditation, I do not feel anything other than being alone in the universe. I wonder whether a certain visual centre point would be more effective in creating a feeling of connectedness than breathing. My name is Rohit, DOB 17th January 1997. Time: 4:50 PM. Location: Pune.