Fall into a rut

Explanation:
Do something like the old customs or experience without any thought or consideration.
Example:

1. She quit the so-called good job and changed her job as a freelancer, and she commented she didn't want to fall into a rut as what others feel.
2. We shouldn't fall into a rut without our own meditation or thinking.
3. Why not pursue your dream? Why do you insist on falling into a rut to be a screw?

Diary:
Yesterday we had a reunion after the consultation job. One of the teachers said, he had many projects and future plans, it once again reminds me to sharpen my products mind and seize the chance once I'm ready.