something that helps me in such a situation is the shiur that R’ Noach Weinberg a’h gave about happiness, which do you prefer – eyes or ears, hands or feet,
in a nutshell, if you focus on how much good Hashem has given us, your problems really get minimized.
This works for me when i find myself in any nisayon area……
So, short skirts or someone’s baby getting sick c’v, short skirts or tragedy c’v……..makes it easier to choose.
Another idea –
Did you ever see kids looking at their parent’s albums and saying, ugh look at those hairstyles, look at those clothes…..it’s all in whose looking at it – so I try to picture the celestial judges looking at me in the album, and the short skirts really don’t look so cute anymore-
you wouldn’t think of wearing a miniskirt-so why think you can get away with a short skirt?, a little treif??? ………