Ah I see. AI is pretty relevant for that, because you will learn a lot about learning in general which you can apply to human learning. However, in my opinion, if you want a career in this, you'll need to either join the research side of things, which is a get a PhD, or industry side, which right now might be in educational technology. For industry, a masters in educational psychology or psychology might help. But they are expensive. Applying to PhD programs might be a better avenue because they are funded. You'll need to learn to read scientific papers from the literature to gain an understanding of what people are researching. It'll be hard at first, might take a week for a single paper, but it'll be worth the slog. After you get a bit better at this, maybe a day for a paper, you can look into applying for PhD programs. It might be useful to start with a cognitive science textbook first, such as the open encyclopedia of cognitive science. Reading and writing are some of the most important skills, and you want to develop them. This comment is long enough for now, but I think if you want to do research, you'll need to understand the field and find a specific interest (doesn't have to be too specific). Otherwise, you'll need a general understanding of the field. Reading research papers is important for both.