{Random advice from the internet}

More schooling will teach more of the sort of things that are taught in school. A job will teach the sort of things that are taught on a job.

If the priority is learning more of the things that are taught in school, get a graduate degree. There is nothing to keep a person from spending time on MOOC's while working. A lot of people do.

Work is not like school, most new grads will learn a lot really fast because the learning is by doing alongside other people with more experience in a culture with a great deal of institutional experience in the thing that is being done.

To put it another way, if there's some really interesting MOOC, take it now.

Good luck.