If you're doing college at 30 you're probably not stupid, stupid people wouldn't do school at all when afforded the chance to. Unless they already have a position in the industry they wanted to and a degree wouldnt help advance their career enough to warrant the time and money spent

30 is young, you still have at least a good 10-20 years of enjoying your life ahead of you right

Also idk about in the US but in a large part of Europe you get paid to do a graduate degree (or at least a PhD), and the courses are often in English, if you want to you should totally look at Germany or Slovakia/Czechia or Norway/Finland (although I think Norway recently made tuition no longer free for foreigners), or even Panama or Brazil, you can get free college and cheap housing (well, not in Scandinavia, but the rest of the countries). You should be able to get in depending on the major's demand, and they're very nice countries to exist in other than Brazil... although Eastern Europe would probably be a massive culture shock, a lot are pretty "blunt" or "dark" in their mannerisms I guess.