Students graduating this year have a couple of reasons to be optimistic: First, they can expect to earn nearly $1 million more over their lifetimes than people without degrees. Second, they’re entering a job market that’s friendlier to entry-level applicants now than it has been in the past few years. However, according to recent studies, many college students are too confident about their financial futures and are, as a result, making mistakes that could haunt them for many years.