I’m sorry to be the one to say that it is highly unlikely that you will be able to raise your GPA high enough. Your simply do not have enough classes left until you need to submit your grades to raise your GPA above 3.5-3.6, which is still far below the mid 50% of students accepted to highly selective colleges.
However, that 3.5-3.6, along with good SAT scores, letters of recommendation, ECs, and a great essay will allow you to a attend a large number of excellent colleges where you will likely thrive.
So aim for all As this year and in the first two quarters of your senior year, and start building your college list based on your profile.