How do I decide whether to move my whole life for a job?

A choice this big can freeze you precisely because everything is on the table at once, career, home, people, the shape of your days. The overwhelm is not a sign you are bad at deciding. It is a sign you are trying to weigh the whole thing in one lump, which no one can do. Big decisions get smaller when you break them into parts. What does the job give you. What does the move cost you. Who else does it touch, and what do they stand to gain or lose. You do not have to answer all of it today. You just have to stop trying to hold it all at once. Get it out of your head and onto paper. Make two columns, what you gain and what you give up, and be honest in both. Seeing it written down turns a swirling fog into a set of real trade-offs you can actually weigh. Start there, and the decision stops being a cliff and becomes a set of steps.