Do yourself a favor. Switch to using Absolute Coordinates until you truly understand job origin and start from modes. Absolute coordinates makes the lightburn screen a direct representation of the laser bed. For example, if you place something in the center of the screen work area, it will engrave in the center of the machine work area. Place it lower left on screen, it engraves lower left on machine.
Pressing the origin button, sets a user defined origin position, which does have it’s place. You are currently set as Current Position, which means the laser will use the current position of the laser head as the start point (origin) of the job.
This video of mine may help your understanding of all this.