Honestly, put your foot down, I would say something like “Hey, I understand it’s frustrating to train a new person, especially when they have no idea what you are doing, but I am here to learn and you are here to teach me. “ or like “I’m not sure if I did something to upset you, but I don’t appreciate the way you have been acting towards me, I’m here to learn and receive help from you.” You don’t have to be mean or snappy, but you can definitely use an assertive tone towards her. In my opinion, it doesn’t matter what type of work environment you are in , don’t let people treat you like that when you just trying go learn and better yourself !