Hi there!! Hoping to be of some assistance to you this evening; have you spoken with the person who you purchased these specific items from? Wondering if you have spoken with someone in a natural foods/health type store for any suggestions on dosage?
5HTP is one natural supplement that is intended to help with sleep problems, depression, anxiety, etc.... and has had some success. Dosage depends on weight, basically...
Otherwise, I am wondering if you have ever had any success with any relaxation exercises--- I am attaching two separate links of great information: http://helpguide.org/mental/stress_relief_meditation_yoga_relaxation.htm and http://www.youtube.com/watch?v=9dk2157JYfA&feature=related
Also, exercise is the best natural anti-depressant available; it releases endorphins, dopamine and serotonin into the bloodstream, all natural calming, feel good chemicals available to us naturally. So, remember to exercise as often as you can!
I will await any further questions or information; otherwise I hope you find the information somewhat helpful in the meantime!