IrisMoon is correct. It is wiser to fix the cause not the symptom. Hair growth spells don't really work. If the spell calls for you to do a hair care routine to help then it might work but I wouldn't say it's the rusult of the energy in the spell. Deal with the stress and your hair loss should end.
Mint in tea, oil, or a bath can calm people. Chamomile can also help. What causes you stress? What calms you? Lavender can help but if you don't like lavender, drinking tea, or soaking in a tub, this could cause more stress. My mom's like that, to destress she dances or cleans. Whatever keeps you calm are things you should do. I do recommend meditation or at least deep breathing. If you're at work and stress sneaks up, stop, close your eyes, and take ten slow, deep breaths. If you're in a meeting or dealing with a customer you might wish to ask for a moment alone or wait until the encounter is over, but give it a try.