Bedroom Cleaning as Depressed Teenager

Hi. Uhm. There's not a nice or easy way to say this but my room is very dirty and i know i need to clean it but every time i go to clean it i just stare at something for 30 minutes then give up. I was wondering if anyone has any tips or advice for how to just... do it? I know that's kinda stupid but i really really need to figure out how to clean it.