Hi, I am considering taking a CELTA course to teach English as a second or foreign language. Am early 50s and I have an English degree to Master's level. Currently working in education (non academic) but don't have a PGCE. What are people's experiences of firstly, the CELTA course and also the work as an ESOL tutor (salary, flexibility, employers, job availability)? I am looking to build this as my main source of income. Any tips? Thanks.