Ah! I know this feeling. The excitement of going shopping for new clothes and the disappointment of realizing that what you bought doesn't fit can be frustrating. For me, I usually leave them, until the day it finally comes in handy...The truth? They always do.
Anyways, always trust your instincts, especially when it comes to buying clothes. And if all else fails, gift it to a sibling who can rock it better...
I'll definitely learn to trust my instincts more.