The system of education in my country is 6:3:3:4. Six years in primary school, three years in junior secondary school, three years in senior secondary school and four years in the university on an average for a first degree. That is sixteen years but if you add pre school and nursery it just sums up about eighteen years like yours.
Just like you, getting a job in my country is a herculean task and each year thousands of graduates keep churning out of the system with no jobs available. This is the reason many youths migrate to Western countries where they feel the opportunities are better.
Unless your course is as professional as a doctor's, lawyer's or an engineer and the likes, I'm afraid there's really not much other courses can do for you. This is why you see many graduates acquiring real skills needed to compete in the real world after they graduate.