Is it to late for me to get a good gpa in highschool?

ok so im a sophmore now an 1st semester i failed all my cles they were really hard an i just got lazy. im behind now an need to take biology over an english 2 over. im still in a freshman math cl because i failed that last year. im just now starting my 2nd semester as a sophmore so tell me is it to late?? i want to be a actress as a career can all this affect that? oh an im also taking civics over as well because i failed it freshman year...ughh im just really having a hard time can anyone please help??