It's probably the best exercise for your mind. We are almost always surrounded by negative people, things, energies. We are stuck in the wrong job, wrong relationship, wrong arrangements. At times that being a comfort zone is our way of fooling our mind as we cannot bear the pain our heart will go through due to their absence or disappearance. For that we put up with them. But does that really help us? No it doesn't. And we also know who wins in the battle of heart vs mind.
When you have to repeat this exercise frequently and you end up removing too many people, or at least one person who you considered very close to you or gave that special place to - be it a friend or a boyfriend/girlfriend, you need to really introspect about your life, the way you have been living and the kind of people you are choosing.
Not that difficult. Most of the things in our life work as per a pattern. We almost attract same kind of people/assholes in our life, we make same/similar kind of mistakes and the final result is almost the same too. Every time we come out of it damaged. The trick is to identify the pattern. And make sure you don't go for any such thing or people that fall within that pattern. They are the most tempting options for you. You are almost always attracted to that pattern. And they always hurt you, destroy you little by little every time.
Trick is to go for boring, simple and unexciting. Wild and interesting will always attract us more than dull and boring. Predictable is so meh. Yes you will agree. But it's actually the best arrangement you can get if you are looking at stability or long term relationships. It's all right to not hear adventurous stories every night after he comes back home, it's okay to live with someone who has a normal routine life. You don't want to feel lucky as he still has the ability to patao girls easily and at the end of the day he comes back to you. These things sound good but don't last. The dream breaks. The pieces pierce your soul.
At the end of the day, all of us want to be accepted, respected and loved. We want to feel happy and we want to be happy. Only then we will be able to keep others happy. Only then the life will be content. Weed out wrong ones from life. Make place for the right things. Time is always right, it's upto you to choose the right people and things.