>>12314689You have achieved half of what you need to become financially successful (= productive, in the eyes of humanity).
The second part is about gaining practical, down-to-earth experience in your vocation, which differs from the abstract ways aquired in university.
There are some hazards/traps on your way:
Most grads tend to think that this is the end of aquiring knowledge, because university was so abstract, their actual job doesn't feel real to them. So they stop learning, thinking their life will just stay neutral (in terms of finances and success) - this is wrong, you actually stagnate. The older you get, the more people think of you as outdated, meanwhile, your standard of living and expectation increases (let's be real, it will never decrease). You have to learn practical stuff, actual numbers, as meaningless as they seem.
While staying neutral, most people tend to get bored with life and seek a family. This is rubbish. Since you're actually stagnating, your 30s are a no-no for making a family, better try your 40s. If you start working at 25, it will only be 15 years till you're 40. That's not much time to aquire enough money for a happy family (with happy parents). Getting kids earlier is basically sacrifing your life to them, possible, but not optimal.
Note: This doesn't apply to women. Afaik, many of them can't bear children in their 40s. They have to figure out a plan for themselves, idk.
