I was gifted a small pine tree of unknown species, around 30 cm tall. I don't know how to take care of it, so with not much fantasy I just moved it into a larger pot, added some soil, and watered it till I saw water in the plant saucer. I do not have any balcony or garden, so I placed it in front of the only window of my studio, that points to west.
Am I doing anything wrong? What should I do further? When should I water it?