Some culinary schools take you as you come, others want you to have a high school diploma or ged and successful work in the industry for 6 months or so. But yes, they will teach you as will your own curiosity and interest.
You want to learn about herbs and spices? google them , find web sites that will tell you all about them, then try them. Basics like parsley, thyme, basil, rosemary and sage; cinnamon, cloves allspice, pepper, cardamom, cumin, cayenne, etc.
Look up the schools and see what they require: CIA, FCI, ICE (all in NY.) Johson and Wales, The Art Institutes, Le Cordon Bleu, and many many others in almost every state. Follow your dream!