안녕하세요 Skye! 잘 지냈어요? Truthfully, that’s almost all of the Korean I know so far! I found a free online Korean textbook recently, but have only had time to read and learn the first three chapters. I’m Sydney, and I also speak Spanish, a very small bit of Russian, and of course English.
To answer the question at the end of your introduction, it suppose it depends on your goals with the language. It seems it would make sense to learn a new alphabet first if there was any interest in reading and writing the new language, especially if you are learning from a textbook. I once tried looking at a beginner Russian book that spelled everything phonetically with the English alphabet instead of the Russian alphabet and it drove me crazy!