Few professions are less reliable than acting. There is no job security.
Many actors spend much of their time 'resting' - the profession's polite term for being out of work.
But no doubt you've already been told that by your school, your parents and any actors you know. The three main ways of training. Susan Elkin is a freelance writer on education, the arts and various other topics for a number of newspapers and magazines including The Times and Daily Mail as well as The Stage.