Hello everybody.

I have a problem with a person in my life. He is manipulative. He is always hiding his real motives, he is always putting his own needs over other people needs, he is constantly blaming others to avoid owning up to their actions. He often turns conversations in fights to scare. My goal is setting boundaries with him. How do I do that?

Pros: he has no clinical disorder since he feels emotions and has this kind of behavior over petty stuff only. About serious stuff he (still) can shut up and listen. He is just selfish and immature people which made a living in sales, which gave them the tools to successfully manipulate.

Cons: I am socially awkward, soft spoken and can't think on my foot in the heat of arguing. I can't simply avoid him until I have an income because I am related to him. Others people in the situation prefer to comply because he can be unpleasant when challenged.