GUESS Grey Denium mini skirt

Bought this skirt used on an online platform but it doesnt work on me. I'm too old to be wearing a mini skirt as this. What was I thinking! It is so cute though and has good strong stretch. It says it is size 29 and I normally wear a 28 or 29 equal to a junior size 7-9. And it fits perfect. Just too short for me.