DON'T COUNT YOUR CHICKENS BEFORE THEY ARE HATCHED.
Don't count your chickens before they are hatched.: translation
Don't count your chickens before they are hatched.
Prov. Cliché Do not act as though something has turned out favorably for you until it has really turned out that way. •
Jill: When I get my raise, I'll use the extra money to go on vacation. Jane: But you don't know for sure that you're going to get a raise. Don't count your chickens before they are hatched.