Replying to Ski size

Hellooo! I just bought the 2021 volkl bash 86 women’s ski 156cm (because they didn’t have any other size) after skiing on 2013 K2 Miss conducts 165cm or something, and I’m super nervous I made a mistake with the size. I am 172cm and about 143lbs. I ski on the east coast right now and am focusing on the park which is why I wanted a shorter ski, but these are barley above my chin and I’ve never skied anything under my nose even as a beginner. I’ve been skiing for over 8 years. Do you think it’ll be fine or will I be too unstable?? Thanks for info!