I understand, I've been feeling the same and that's without the family legacy - a hyperfocus mixed with an emotional connection is always going to be dangerous.
A few things to remember: firstly, Russian media specifically and the internet generally are awful for misinformation, so it's likely you're seeing a huge amount of falsehoods, deliberate lies, misunderstanding and people speculating who don't have the knowledge or experience to speculate. Even trusted, seemingly unbiased news sources have an angle and want clicks - I work in news media and the number of clickbaity, Buzzfeed-style articles with "10 ways Putin has done X" that are terrifying scaremongering is shocking to me (and I see it every day at work).
You're likely to be seeing a lot of information which is just wrong, misleading or unnecessarily speculative for whatever reason - it's the news equivalent of reading gossip magazines because it's open season on speculating. Just as you wouldn't eat chicken nuggets all the time, you shouldn't consume every piece of shit news all the time - choose 1-2 reasonably trusted, balanced news sources and check them at intervals. The constant doomscrolling is harming you and you're not learning anything of use - nothing you learn changes anything, it might not be true anyway and it's directly affecting your health. Block sites and delete apps if needed.
Secondly - if you've done CBT you're probably aware of the idea of preemptively suffering with anxiety for something that hasn't happened yet, meaning you suffer it twice. You could worry and worry and worry now, and then if something bad DID happen to you, you're going to worry anyway. You're not stopping it happening by being anxious now, nor does it stop it being scary if it did happen in future. Not saying this helps you stop, but think about what this worry is achieving for you - does it help you respond better to any potential dangers? No, because you're a nervous wreck full of conflicting scary information. Does it help control the outcome of the situation? No. Does it help anyone around you? No. What are your goals right now? They're keeping yourself and your family safe - and right now, there's no threat to you or your family, so turn your attention to positive action. Can you donate, write to your MP asking them to speak up for better provision for Ukrainian refugees, volunteer at a local refugee centre, go to a solidarity March, etc?
And lastly - there is no danger right now to us, here. It doesn't make it any less tragic and horrifying, but we are safe. We're very unlikely to ever not be, even though it seems volatile. Focus on that and your babies and being thankful that you are safe and well and together - don't let fear and anxiety ruin that for you over something that won't happen.
I get the fear - I spent 48 hours staying up all night, reading and obsessing, and I was making myself ill. I wasn't helping Ukraine and I wasn't warding off anything bad happening, I was just reading every moron on Twitter's wildly off-base take and panicking. I've restricted myself to a couple of news checks a day now and focusing on doing useful things I can do to help and staying busy the rest of the time. As depressing as it is, situations like this are happening all day around the world - hardly anybody (including me!) is saying they're up all night worrying about that on Twitter. We are picking and choosing, because this seems huge right now or because the media is pushing it or because it fits a narrative or because it's closer to home so it feels more real, but sadly human nature means this isn't all that unusual. We have to be able to purposely choose what to allow into our brain space or we would go mad, and you and your kids need you to keep it together ❤