Change the hobbies, the hair, the playlist. Keep the people who knew you when you were weird at twelve.

Almost everything about you is meant to be replaceable. Taste, style, what you do on a Saturday: all of it can rotate without costing you anything real. The people who were around before you had any polish sit in a different category, because they are the few who can tell when you are performing.

Change whatever you like this year, and keep contact with the two or three who remember the awkward version. A message every few weeks is enough to keep a long friendship breathing. Those are expensive to replace and close to impossible to rebuild.