Hi, a problem with pre-formulated supplements is they're very general and so will only help some people, not everyone with for example anxiety or insomnia.
For a supplement, formula or medication to work best and without side effects it must be tailored specifically to suit your particular problem, constitutional body type, and other factors unique to you.
This is a major strength of holistic systems like traditional chinese medicine (tcm), whether your treatment is acupuncture, herbal medicine and/or dietary therapy. Two people may have anxiety but receive entirely different treatments because they're entirely different people, physically, mentally and emotionally.
While you'll need a face-to-face consultation with a professional practitioner of tcm for such treatments, there are many self-help techniques you can use either on their own or in conjunction with virtually any other treatment modality.
Some simple, highly beneficial ways to calm and relax yourself and ensure good sleep are through deep breathing exercises and acupressure. These techniques are easy to learn and can be applied anytime, anywhere.
Don't take it for granted that someone else will fix your health problems, start learning how you can help yourself more. Of course, consult health professionals - just don't leave everything up to them. It is afterall your body and you can do more for it than anyone.
Any questions about the above self-help techniques i'd be happy to answer.
All the best,
matthew