it depends what you want out of more education. I make video games and I found the easiest / best way to increase my salary and get promoted was through job hopping through my 20s and early 30s. I don't know if IT is the same, but I found once I had been at a firm for more than a year or so, it became difficult to keep my salary in line with inflation as the bastards would always think of ways of delaying pay rises. Getting a new job makes that problem disappear
Going contracting in my mid 30s took my earnings to a new level of bonkers that worked very well for me.
As for education, if you have a deep interest in something academic, you can get a lot of books to read for the price of your course fees. I think academia is worth it if, and it's a big if, you can link your degree or masters to a job that you want. For IT, i think you're probably better off just writing code at home until it clicks.