I would say that if working overseas is a goal of yours, then do a degree. Bear in mind though that your degree doesn’t necessarily have to specifically be a CG degree, it can be anything related to the field, and that includes fine art, which is definitely something worth considering, especially since so many CG degree courses are not very good.
Look, to be honest I have no degrees myself but I’ve worked in the States and I’ve been living in the UK for a long time now despite being from South Africa. But that’s been due to a combination of luck and hard work, and it’s not necessarily a route I’d recommend that others try to rely on. Getting a degree is definitely going to make your life easier if you have ambitions of working outside the EU, and from a personal standpoint, that’s definitely something I’d recommend, as living and working in different countries is an awesome life experience that I’ve absolutely loved.
I know when you’re young the thought of spending four years at uni may seem like an eternity but if you pick a course wisely you’ll not only make things easier for yourself in the long run, but you’ll also benefit from a good education not to mention the social opportunities that education provides you with.

I was born in Russia and have the passport. I was raised in a Russian mentality, so yeah.