My beginner attempt at writing something in Slovak (before lessons)
Ahoj! Ako sa máš? Volám sa Tristan. Ja Som Američanka. Ja Mám rada knihy (Rada čítam), (I like other things but I don't know a lot of words for that). Môj otec je Slovák. Moja mama je Američanka. Hovorím trochu slovensky.... Veľmi trochu ;). ... Neviem nič! Dobrý deň!
Some of the sentences are gramatically correct but a native speaker would say it in a different way. However, it seems to me you have good basics and could learn Slovak fast.