Like Namechangerage I compartmentalise. I also metaphorically stick my fingers in my ears and "la la la la la" a lot!
If it's something in my control (imminent smear test, figuring out how to budget for the next scout trip) then I worry and figure it out, DH holds my hand. Future stuff coming up - we'll figure it out when the time comes, we've discussed options A, B and C, I'm sure we'll need an option D that we haven't considered... But we have healthy boundaries and can say a strong no to those who will push (bit cryptic: in-laws, finance, lazy grabbing bil and sil, imminent in-law passing away, huge house debt...). So, no, I don't worry about it at all, it barely enters my head.
On a daily basis I don't worry about anything other than little things.
I used to be a worry wart, but it got me nowhere. However, I'm in peri and having anxiety attacks out of the blue, not triggered by anything. They're fun.
I have to admit that although I'm a very generous person, gracious, unbitchy, lovely huggy me... I'm selfish, on this count, and can't be arsed to worry about loads of things so as to protects my mental health.