If you have questions about the conjugation of горнолыжница or Russian nouns in general, you can practice and get feedback from a professional tutor.
Я встречался с горнолыжницами, несколькими балеринами, ведущей прогноза погоды, не долго.
Uh, I have tended to date downhill skiers, a few ballerinas, and a weather girl, briefly.