The self-saboteur has no clue of how reckless they are because they are not aware of what they are doing wrong. Others may want to avoid being around them because they unconsciously focus on the negative and not the positive. They usually manifest their sabotaging nature when they achieve something great. Rather than celebrating the achievement, they allow at least one event they are not satisfied with to consume them.
The self-saboteur pushes others away. I was writing about the loneliness of the most successful when I somehow changed course as I was analysing the reasons some successful people destroy their success. They wreck their marriage and relationship, business and money, etc. It is not a guarantee that when you make it to the top, you will stay on top.