Windows 10 screen flickering every 2 seconds after log in

So Im not by any means an expert in pcs, i basically know almost nothing. Few days ago i normally logged into my pc and this black screen thing keeps happening ever since (it looks as if i just pressed on refresh and the apps all disappear and the screen turns completely black for like a second, then it turns back to my desktop background, then after two seconds it turns black again and this just keeps on going). I cant right click on the desktop, cant open any apps, (i can open things such as task manager from my keyboard and stuff) and im losing my marbles trying to fix this. Ive tried solutions from youtube but nothing seemed to work. At first I assumed its the monitor or something but considering it doesnt flicker as soon as i turn the pc on, but just after i log in, i dont think it has anything to do with that. Anyone got any idea what could it be or how can i fix this? Or maybe its not something i can fix myself and would have to bring it to a pc service (which im avoiding because of time and anxiety) Any help would be hugely appreciated as i need this computer for work