I use the herb valerian. Not just to sleep but if I feel anxious. The problem is dosage. It isn't like taking medication with a certain dosage. Some days I realize I am taking handfuls of capsules. I seem to be able to handle depression better than anxiety. I have come to dread anxiety. I hate it. It really seems to somehow make me hurt physically. Maybe it is tension and anxiety combined. Has anyone taken valerian and does it just stop working after a certain point?