"There is nothing you can take from me." Say it in your head to people you encounter. Look them in the eye when you say it if you can. If that's too much then say it to them with them in your peripheral vision first.

That's it. The key to self talk is believing it. If you don't believe this statement to be true then define what it is that can be taken from you by another person. I'm not talking material things here. What is being taken? Love can't be taken. It can only not be given. But even then, in the moment of withholding, it's simply not being given. In that moment, it was not yours. Find out and investigate for yourself what can be taken.

I can go into more depth on my own philosophy of this, but try it for yourself. You have literally nothing to lose.