I found data checkin pretty easy to be honest, but cubes were hellish, lots more difficult than the ones in the practice paper. I made my own cubes and then flattened them out and practiced thinking what they would look like from different angles/views etc to try and get my mind into that way of thinking. Commands also are do-able but again its lack of time that really holds you back, just be as well prepared as you can be, make sure you know the motivation paper backwards and then try and stay as calm as poss on the day
and do your best.
Good luck
