unable to upload any scripts to my arduino uno

A year back i got a arduino uno from my parents in the start i dint care much then i being and idiot destroyed my controller and my parents refuse to buy me a new one so i started building my own controller. till a few weeks back my arduino was working very well but then for some reason i wast able to upload to my board and this happned simultaniously with the L led glowing
all the time.

this is the image: [.

pls help. i am using the unojoy project to convert my aurdrino uno to a controller.

i fear i bricked my arduino or corrupted the bootloader.
i am new and i dont have any other aurdrino.](Imgur: The magic of the Internet)