why do i always push people away and block them out?

Maybe fear.Fear of being hurt,fear of being abandoned,fear of trusting annther.There can be many different reasons.

Sometimes it is easier to block people out or push them away, than it is to accept help and care from those around you because the fear of being let down or abandoned can be present.

Because you value your independence. Some people insist on helping you but all you really need is some space. It'd easier to block them than having to explain your reasons.

Sometimes we want to have some time on our own to analyze and validate our thoughts neutrally without other people interfering during the process, sometimes we are afraid to depend on other people emotionally, sometimes we are afraid of people leaving or hurting us that we choose to distance ourselves in order to ignore the pain and sometimes we are not able of forming healthy relationships with people and therefore we try to ignore our problems by fading away. There can be thousands of reasons why a person chooses to push people away. Ask yourself, do you relate to any of the reasons given above?

I'm not always in a great mood and sometimes I don't have the energy to interact with people. By avoiding conversation, I feel like I am protecting others from negative interactions. It's not anything personal. I just need to preserve my energy. Sometimes that requires some alone time. Other times, I am feeling emotions that I do not want to address and don't feel like talking about them would really benefit me. It's not that I needed to be guided through what I am feeling, it's just that I feel like doing so would make me feel even more upset.