Thanks! It is quite stressful, especially since I'm having trouble with Applied Mechanics, the lecturer for that course is going away on holiday and won't be available until the end of April, plus I have two projects and an assignment to work on on top of starting revision.
A stress ball could well work...I wouldn't be able to take it into tutorials with me because I'd be worried in case people asked about it

...but it'd be good to have in halls! No idea where to find one, though.