with your eyes open
US /wɪð jʊər aɪz ˈoʊpən/
UK /wɪð jʊər aɪz ˈoʊpən/

1.
aware of the potential problems or difficulties of a situation
:
•
She went into the new business venture with her eyes open, knowing the risks involved.
•
It's important to go into any major decision with your eyes open.