In a Theatrical audition it is imperative that you're able to walk in, find your body position, and be totally relaxed
If you find yourself becoming resentful or feel anger building when heading to an audition, just stop.
If you want your creativity to help you, then spend 100% of your time on the creation itself, because you know acting.
90% of managers today function like agents without the state bond. Don't expect much from them.
Memorization is important for film and television performers, but you have to have vision behind it.
Choosing to not pursue acting as a career isn't quitting. It's simply choosing the joy of art over art plus commerce.