How can I limit my anxiety and stress?

Aleera
So I'm really stressing out about all the problems in my family. We quite often have arguments but on a usuall level. Well that's not the point. My mother is really anxious, too and she wants to talk to someone who trusts about the financial difficulties of our family and other problems. And when I know about all that I'm really awfull, and I always anxious and even my stomach hurts form anxiety and stress. And I don't knwo how to limit that. I told my mother to stop telling me about all these stuff, but we always end up on the same page talking about it. So what can I do to relax?
How can I limit my anxiety and stress?
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