She Xiang used?

In Chinese Medicine it is generally uncommon to use individual herbs (see “how to choose a formula”). She Xiang appears in a number of formulas that may possibly be used for the symptoms you mention, but none of those may be correct for you (see the article referenced above and/or “treating the cause vs. the symptoms” to understand the basics of Chinese Medicine diagnostics). Further she xiang has a quite limited but strong opening affect to what we call the “orifices” in Chinese Medicine - without getting into too much technical detail this substance would be far more likely to make many people with anxiety/insomnia, particularly if it is arising from yin deficiency, worse - particularly in larger amounts. It is always best to consult directly with a highly trained practitioner and get an appropriate prescription for you.