Aluminum and magnesium antacids work quickly to lower the acid in the stomach. Liquid antacids usually work faster/better than tablets or capsules. This medication works only on existing acid in the stomach. It does not prevent acid production.
If you plan to become a professional curriculum designer, you will generally need to have a teaching degree and a master's degree in education. If you want to remain a teacher and design curriculum for your own students, look into continuing education courses that can help you get started.
You hire instructional design professionals and consultants to package it for you. Instructional designers make use of a range of different tools to do their work. There is writing but also web design, the use of graphics, planning, collaboration with you, and an underlying knowledge about how people learn. Anyone can print a sheet of paper with a load of information or a few pictures on it.