Can anyone give me any info about university grades?

well i just took my calc 2 final and im so stressed and depressed because there is a possibility that i might fail :/ I studied really hard for the test and yet it feels that it wasnt enough for me to p. On the first test i got 39 and the cl average was 48 and the second midterm i got 48 and the cl average was 52. he could drop your lowest midterm but more emphasis on the final (65 percent). Im just hoping i p this cl its all i ever want but idk...