In this industry, university and education do not count for as much as you might think.
In contrast to the previous poster, unless you have a burning desire to go to university then don't go.
Almost all my colleagues have NO university/degree background and although I do myself, I feel like one of very few with this and it doesn't really feel like much of an advantage unless one day I fancied a total career change.
In aviation, experience and ability is everything. ATC come from all sorts of backgrounds, Pilots come from all sorts of backgrounds and almost all other roles such as Operations are very rarely recruited externally, they are based on internal candidates and their experience within the company over previous years.
Ultimately it's your decision, but in some ways myself and a few others with degrees actually feel we could have used the 3 years better by gaining more experience and more cash from employment!