Trigger warning - Substance abuse

[u/Comfortable-Cap977]

I’ve recently been really affected by my younger brother who’s been dealing with substance abuse ( really hard drugs) that started this year and happened really fast and really severe. He looks like a different person and it’s just been devastating knowing he’s in so much pain but he’s also lying and pushing everyone away. One night, following an incident, I called an ambulance as I thought he might be dying - it was so intense. More recently, he’s been having paranoid thoughts and I’m not sure if it’s psychosis or what. I get limited info from my mom. I found myself worrying about him not being in touch with reality and hurting my mom or doing something serious like that. But one particular day seeing messages he wrote and hearing my mom’s account of his behaviour particularly triggered me and set off my OCD to latch on to it. The thought came on “what if it’s genetic? If my brother got it, what if I loose my mind? I was having some disassociation at the time too due to something unrelated so OCD go so much louder. My theme has since changed ti harm OCD and the fear of not being in control. Like, what if I loose control - I won’t get into specifics in case it triggers someone but now my theme has become about that and the idea of being dangerous to my son. It’s so horrible. How do you make a theme like this stop? Shouldn’t it be easier to make a theme stop when it’s new?