Replacing a garage door panel can feel like a daunting task, but with the right tools and guidance, it's manageable. First, it's important to identify the damaged panel and ensure you have a proper replacement. Next, disconnect the garage door opener and carefully remove the panel by unscrewing or unfastening any hardware. Once the old panel is out, slide in the new one, making sure it aligns with the others, and reattach the hardware. Finally, reconnect the garage door opener and test the door for proper functionality.