Bonjour^^ j’ai un passage à l’oral devant ma classe lundi et j’aimerai s’avoir si j’ai des fautes ou non ?

Le texte :

Today I’m going to tell you about a precious stone that is the Amethyst. I know Tony is already done it, but I’ll tell you something different. It’s important to me because it’s my mother who gave it to me, because for her stones have benefits. Amethyst reduces stress and anxiety. Since a very young age, Esotericism has always fascinated because my mother or even my grandmother have always practiced it.
To explain to you, esotericism means in some kid of "étrange".

Merci si vous arrivez à m’aider !!(Si possible sans l’aide de Google Traduction)