Try to look for “how to become successful” in Google. You will find a plenty of DO, DON’T, NEVER, ALWAYS… but you will not find what you really need.
I spent about 2 years attending 3 universities one after another: Economics was my breakfast, PR was my dinner and Languages became my supper. Somewhere in between I managed to take some short jobs to get my pocket money. Did it teach me a lot? Oh, yeah! Most importantly, it showcased all kinds of emotional, physical and intellectual burnouts one can imagine.