High School GPA

I’m not sure if I posted this in the right forum but, how high can I bring my GPA up if I get a 4.0 junior year & senior year when I have a 2.8 GPA as of right now? (Finished 1st Quarter sophomore year) Please help, success stories?
Details:

  • I have a 2.8 GPA right now after freshman year of High School, I’m in the IB program and it’s very tough. I just finished with my first quarter in sophomore year. I stopped procrastinating but, I have majority all B’s only 1 A and I think 2 C’s but, I’m still waiting for my Chem grade, I love Chemistry but I do bad in it and that’s the class I’m worried about as well as Spanish :confused:

http://www.collegesimply.com/gpa-calculator/