You have to register online (I think it's on track or somewhere on the UCAS website) and then you have 5 days to try and secure an alternative university. It's similar to clearing but the other way around if that makes sense, and as far as I'm aware there's like a list of universities that have places but you have to contact them. Yes there is a risk with accommodation but there will be a number of firmers that didn't meet their offer so a lot of it will free up - this will be given to insurance choice people as well but they technically have no accommodation guarantee either. Psychology is popular so it's less certain and it is risky. But personally, I feel it would be less risky because if non of the other universities have places you can still go to UEA - a security you don't have if you try and change now. In addition you'll know your grades so you'll know where you can apply. But really it's personal choice, I'm a bit of an anxious person so I wouldn't want to take the risk, but I think there's cons to UCAS adjustment, as well as pros - as you highlighted. Hope you sort something out! If I wasn't so in love with my firm, I'd be in the same position as you although I'm still worried I won't get into my firm :L best of luck!!