Brexit was like parachuting
When you jump out of the plane (or get pushed out of the plane) with a parachute then you need to concentrate on pulling the cord (it is done then) and work hard at steering and landing in the right place, not on a tree or a power line. Complaining or cheering about Brexit is like posting on TikTok or Facebook while you descend towards landing on something instead of thinking about what you need to do to land safely.
And then think about what will happen when you land, and work to make it decent regardless of how you felt when you jumped through the door.