New to CRT

I’m graduating from university this year with a degree in Primary Education.

I would like to work as a CRT, and possibly take on part-time teaching. I might move into full-time teaching later when I feel more confident.

I’m Deaf myself, and I’m planning to work as a CRT at three Deaf schools.

I wanted to ask how often you usually work as a CRT. How does this work? You let schools know what days you'll work? I’m a bit worried about not getting work every day or going for long periods without work.

Thank you so much!