If you're interested in IT, talk to someone in your area working in IT about the options for somebody without a degree in IT to get a job in that field. In the US at least, there are a number of mini certifications that would take a lot less than 3 years. Similarly, you should explore a variety of more easily obtained technical vocations. I am not sure what the options in Belgium are. 3 years spent towards only a slight improvement sounds like a negative return on investment.