Nobody wants to be with me?

I never been needed by anybody. I think all people have some friends or partner, but nobody cared about me.
Recently I have been deleted from group for people with social anxiety cause I argued with several people cause I felt like they Crossed my Personal Boundaries. I felt so angry that my head hurt. I know that I make bad for myself from overthinking and being angry. I felt so angry that next day when I talk I couldn’t remember some words.
I’m currently 26, don’t have job and friends and don’t have to deal with my mental problems. I feel like I will never be accepted in any group cause I think too much and can become aggressive about my boundaries.
Did you felt same thing?
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And don’t know how to deal with my mental health *** corrected
Nobody wants to be with me?
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