How do i raise my cumulative GPA from 3.1 to 3.8?

I was a sophmore but now since were on summer vacation im a junior i have a 3.177 cumulative now and i need to bring it up to 3.8 by senior year, how would i do that? i took 1 AP class for junior year and 2 honors classes and for senior year im taking 4 AP classes, would that be enough to bring me up to 3.8 if i get all A's. Thanks!