Stuck using the shower? Who doesn't know how to turn a shower on? Even if you did I'm not sure it would be a 'shock.'
There is nothing about Uni (in my opinion) that is different to school/college apart from the focus on independent learning.
So for me I would not say there has been any shocks...yet!
Also, I don't even want to ruin it for you, but don't believe any over-hyped things you hear about Uni. Get excited, yes, but it is not what most people try and make it out to be!