@NewModelArmyMayhem18
Can you coast at university though, even if you are very bright? Unless you're doing a course that's totally mismatched with your abilities? I have always thought that those who get firsts do work very hard for them?
Depends. Brightest person I knew at uni (Oxbridge)sailed through his maths degree in 2 years, getting the top first. He could have done only half the papers and still got a comfortable first. He then did a different subject (Philosophy or similar I think) in one year and also got a first. English was also his 3rd language and he was two years younger than his peers.
The really odd thing about this was he appeared totally normal

and did a lot of extra things including active club reps etc.
With maths it does seem to be more on natural ability than other subjects though.
Year above me there were 3 that got 1st. One worked hard all the time. I remember my first meeting with him, he'd arrived about two hours previously, and one of his friends asked if he'd done any work yet, and pretended to faint when he said he hadn't (actually he apologised because he hadn't!!)
One of the lads worked hard but not that hard, and got one of the top firsts. The other one never seemed to do much!
And from my own experience. I got a comfortable 2:1. I didn't work that hard (having glandular fever in my final year would have stopped any inclinations I had that way) but I covered my work without stressing too much.
However the reason I got a 2:1 was entirely down to one paper I got pretty much full marks on. If I'd had two papers like that I would have got a first fairly easily.
To me, (I remember arguing this with someone) the questions were really an extrapolation of what I'd done at A-level, and I really couldn't see that they were any more difficult and why anyone would think they were, they simply had a couple of extra steps.
The person I was speaking to was saying it was incomprehensible.
However they thought linear algebra was just so obvious that there was nothing to understand, whereas I found it a total closed book. I think I did manage to get into double figures in my paper, but I'm not certain.
(and Analysis was almost as bad)
In some subjects hard work will pay off more than others. Could I have got a first? Not sure. Would it have been worth the effort I had to put in to get it? Probably not. 