Give it a go! There’s nothing wrong with wearing oversized if you’re short, I’m 5’9 and I consistently wear a few oversized pieces that I feel good about. Key is silhouette, the overall shape of you and the outfit. Play around with different pants and more importantly length of the oversized coat first and do your own thing after. This will alleviate a bit of the “I’m short in this” conversation we go through in the mirror. Hope this helps!
