Can Two People From Different Countries Make A Long Distance Relationship Work Under The Age Of 25?

I’ve finished college but plan to start grad school in the fall. Currently I’m living in my boyfriend’s country. We have been together almost 6 months. We have a good relationship and I would like to try making a long distance relationship work for a few years. We could try to visit during school breaks, and I will try and study abroad in the same place with him for 9 months of the 3 years I have ahead.