You don't mention your age, but I felt same way when WE determined to retire to a country in different hemisphere! Can't take EVERYTHING that far! Had to prioritize material items that were most important.
Couldn't emigrate after all (age cap over THERE) and spouse ended up leaving me anyway - unrelated to move. Yet practice of deciding what I could part with was a good one.
Somehow store what you might regret parting with and get on the boat! NOTHING to say you can't go back! 'SPECIALLY if renting! Take that STEP! Have an ADVENTURE! Most folks at the end of their lives regret what they DIDN'T DO, not what they DID! Enjoy your life either way! - S.