Don't be already in high spirits before its announcement!
Don't be already thrilled before its announcement!
Don't be already excited before its announcement!
My friend had a job interview and he believes he will get the job for some reasons. All of his friends also believe that he will get the job. The company will announce the result soon.
Now my friend is so happy as if he got the job. In this situation, can I say these above? If they are unnatural, would you mind teaching me some good expressions? Thanks in advance!