Assalaam alaikum,
The most important cure for anything is the Quran. Sura Fatia is a cure. Salat is critical.
Now. Let's get practical. First, once you have repented forgive yourself. It is over. You can not look over your shoulder and doubt yourself. Move forward.
Fast, it keeps you occupied. You are at an alert level not to fall into the whispers of shytan; and does he send your head spinning.
I just finished reading an article that describes how critical it is to eat that which is good for you. Dates, barley, honey are excellent. Black seed oil is good.
I find juicing for a week gives you energy; the good kind. And you feel very full.
We are all so lazy and busy with nothing we forget how important it is to call upon Allah subhana wa taala all day long. When any irrational thought occurs call immediately upon Allah subhana wa taala.
Calling upon Allah subhana wa taala helps us to slow down at times. You gain control over the emotional spike. Call upon Him and say You are the most Merciful of those who have Mercy, I am of the unjust, forgive me ( forgive me as I use the poor English translation of this dua).
Call upon Him and say There is no power but Him.
You will be focusing on Him and not the emotion that is calling you at the specific time.
Sister, there are dua for anxiety and stress. Use those daily to wipe away the fears that shytan places in your heart.
Too, zakat is important. I think of Fatima, the daughter of the Prophet, swas, who gave away her wedding dress on the day she was married.
So you ask why are you talking about dua and remembrance of Allah subhana wa taala when I ask for a natural cure. Because they work.
Please keep writing to us. If you need to PM us do so. We also have Sister Shyhijabi. She is an excellent contact for you.