Because you're a national of Greece, you'll be thrilled to discover that you don't need a visa to study in Estonia. Rejoice!
Still, that doesn't mean you can just pack up and leave for Estonia. You will still need to arrange a few things:
Sure, those won't be that easy to get. But, hey! - at least you skipped the student visa part, so that's something, isn't it?
Don't forget you are also allowed to work during your studies. Usually, students who are EU-nationals studying in an EU-country don't have any work restrictions. Others are generally allowed to work for up to 20 hours per week. Just make sure to check what the law in Estonia has to say about that before looking for a job.
What else can we say but: good luck and never forget to have fun during your studies!
Estonia is one of the countries that represent the EU values the best, having the freshest air, one of the freest press, and people being required to wear safety lights on poorly-lit streets, even if they are walking.
Also, Estonia's system for public use is so well put together, someone can start a company through the internet in less 5 minutes, that it comes as no surprise that Computer Science and IT is in top 3 degree searches, along with Art,Design, and Architecture, and Engineering and Technology.
View Master's programmes in Estonia!