Don't sweat it, mate. It happns to all of us.
😛 Take a deep breath, relax and let's continue.
1. Download the 0903 BIOS from your motherboard's support page on the Asus website.
2. Format a USB pendrive to FAT32.
3. Extract the BIOS file and rename the file to M6H.CAP.
4. Put the BIOS file on your USB pendrive.
5. Connect the USB pendrive to the the USB port that's right below the USB BIOS Flashback button.
6. Press the USB BIOS Flashback button for three seconds until the LED begins to blink, then release.
7. Wait until the LED stops blinking.
8. Power on your system.
Any changes?