1. As a psychologist, my answer to that first question would be an essay, so I probably shouldn't answer it in too much detail. Short answer: both.
2. I chose my degree based on what I wanted to learn. This was a good thing because, if you're interested in something, it's much easier to learn and you're more motivated to study. However, I'm now having to retrain and do a 6 month course in a different subject in order to get the job I want (its not really well-paid, just the thing I want to do)!
It also depends whether money is very important to you. I'd rather do a job I love for little money, than a job I hate for lots of money.
Favourites: Eve, Alice, Norah, Isla // George, Charlie, Arthur, Oscar