I've worked at 5 different companies that did standups. They always sucked. Agree with what others said here: If you need to talk to someone, just do it, don't wait for the next day.
The team that didn't do standups was by far my best team. We still talked frequently as needed and moved quickly. Actually quicker because we didn't get interrupted by standups, hour long retros and planning meetings.
I have the same, living in the UK for the last 3 years. Any ideas how to feel home back in Denmark? Do you mind you don't feel 100% home in any of the places?
I think having a family is very cool and I'm looking forward to that!
As for being more tired - try physical activity (running, gym, whatever), for me it does miracles.