Grow the fuck up, and practice some self reflection to recognize why you act that way. The Toxic person in a circle tends to try to tear people down instead of building them up. Try to understand yourself to recognize why you'd act that way. Jealousy? Greed? Low Self Esteem? Could be many reasons.

People in a circle are supposed to be friends. Try to learn why you want friends, but aren't willing to be a friend in return.