This work is licensed under CC BY-SA 4.0 : also see my full Copyright statement.
Reading the next section (theory) is not compulsory(!) or maybe even necessary.
The two-page summary in Section 3 is probably adequate. But you may find ideas here that will help to significantly deepen the effect of practical exercises.
The following should NOT be interpreted as an instruction to throw your medications down the toilet. Your health is your personal responsibility, and is dependent on your personal awareness of what might be called "symptoms" and your personal choices of action – whatever they might be. Your immediate awareness of your body’s needs is far more pertinent and relevant than any generic description or ideas (such as those provided here).