Only when willing to let go???

I am taking Star of Bethlehem for grief and shock. I have been taking 4 drops 3 times a day. I found it to really work when my grief or sorrow was mild to moderate. But once when I was really sad it didn't seem to work. But I know that at that time I wanted to feel that way, I wanted to get it out. So, I am wondering if the flower essence works only when YOU WANT to feel better??? I read that the flower essence actually corrects the blocked energy flow ect. and actually corrects the negative energy. Again, I am wondering if it only works when you want it to?? Or do they work whether you want it to or not. In other words do they only work when you are willing to let the problem (feeling) go??