My acting mentor has a great phrase:
Use everything as an opportunity to act.
He’d use it when I’d lament about a task in class or a ‘small’ role (no such thing). It was his reminder that as a practitioner and crafts-person, you always have the frame of your own practice to meet anything with.
A visiting tutor asking you to express the text from your toes? Yup, that’s your chance to act.
You’re only cheating yourself and your own growth when you pick and choose the moments to apply yourself.