Replying to I need ur opinion on this guys

Hey guys, i need help with this. here is the thing, i bought a pair of LINE blend 2017 (178cm) and i’m 172cm tall. Do u still think im going to be able to use them in the park? Or even use them in the mountain? Im really desperate and worried about this since i burned $700. I wish i could change them but im so unlucky that they are out of stock :) . And yes, i was stupid in buying such a tall ski for mi height.
Im so afraid i wont be able to use them, but i would like your advice guys. Thank you and greetings from Argentina!