I used to meditate alot and it has helped, using headspace in the beginning but I stopped some years ago. On the bright side I overthink much less than before but meditation couldn’t hurt and would probably help

I definitely overthink before sleep, I’m relatively calm in the other places you listed. I never thought about where/when I overthink before, thanks for giving me a new way of framing overthinking, I will try my best not to overthink it