This is so true. I have a brother who constantly says, we are the sum of the 5 people we spend the most time with. I ignored that for a very long time. Until I started wondering why I was so tired all the time, so depressed. Then I started reexamining my life and I realized I was surrounded by people exactly like you mentioned here. Emotional vampires, negative Nellies. Some, the universe removed, others, I had to remove myself. I feel so much better for it.
Thank you for sharing this, Chris