The phrase "nervous wreck" is essentially used to describe someone who is extremely anxious or stressed out, often to the point of unmanageability. However, there are several alternative phrases that can be used interchangeably to describe the same feeling. Some of these include "basketcase," "jittery mess," "frazzled," "anxious wreck," and simply "anxiety-ridden." Each of these phrases may bring a slightly different connotation, but all ultimately describe a person who is struggling to cope with overwhelming feelings of nervousness or anxiety. No matter the word choice, it's important to be empathetic and supportive to those who are feeling overwhelmed and seek help if needed.