There are graduate degrees in brewing. There are also (expensive) courses that don't offer degrees. From what others on this forum have said in the past, though, experience is far more valuable than education. If you have both, then you're set.
I'd say get involved, maybe even volunteering, at a microbrewery or brewpub if you can. Then you can learn what brewing is really like on a large-scale basis, so you'll have a better idea if it's for you.
Credentials in the beer world don't mean quite as much as experience, FWIW, coming from someone who is not in a "beer career".