Udeful advice.

As many of herbs having a calming effects.
oregano as two tea.sp. of herb adding in glass of the hot water, use a few times in a day before meal, avoiding using in pregnancy.

Wormwood as one tea.sp. of herb adding in glass of the hot water, infuse are 40 minutes, filter, use on half glass for 4 times in a day, for week.

Yarrow.
one tea.sp. of dried chopped herb adding in glass of the hot water, cook infusion, use one tbl.sp. before meal.

And calming nerves system are helping these recipes.
Compress of birch buds as 40 gr of fresh prepared adding in one l. of the warm water, infuse on water stewed bath for hour, apply compresses on the forehead.

infusion of sandy everlasting as one tbl.sp. inflorescence's adding in 0.5 l. of the hot water, infuse night, and drink all infusion.

Dry root of dandelion, cook infusion of 7 gr powder in 0.5 l. of water, use a few gulps within a day.