Is there anything I can do to increase my chances into getting into more selective universities?

Work harder and communicate with teachers to increase that GPA. Do a bunch of competitions and try to place high in them. Do the SAT/ACT and repeatedly do practice tests until you get 1550+ consistently and take at least 2-3 at the minimum of the actual test.

It's completely understandable to feel a bit stressed about your GPA, especially if you're aiming for competitive schools. First, let's focus on what you can control moving forward. Improving your GPA is still possible, especially since you're a junior. Here are a few strategies:

Focus on Current and Future Classes: Prioritize doing well in your current classes, especially the dual enrollment ones, since they can have a significant impact on your weighted GPA and demonstrate college readiness.

AP and Honors Courses: Continue taking challenging courses, like AP or more dual enrollment classes, if possible. These can bolster your weighted GPA and show admissions officers your willingness to challenge yourself.

Strong Finish: Colleges often look favorably on an upward trend in grades. Excelling in your junior and senior years can show resilience and improvement.

Now, let's talk about enhancing your application beyond academics:

Extracurricular Activities: Engage deeply in a few extracurricular activities rather than spreading yourself thin. Leadership roles or significant achievements in these areas can stand out.

Passion Projects: Consider starting a project or initiative related to your interests. This could be anything from a community service project to a research paper.

Summer Programs: Look for summer programs related to your intended major or interests. These can offer additional learning experiences and networking opportunities.

Personal Statement: Use your college essays to highlight your personal growth, resilience, and unique qualities.

Remember, admissions officers look at the whole picture. Your story, experiences, and what you bring to the community can make a significant impact.

My GPA wasn't perfect either when I applied to selective schools. Honestly, the best thing you can do is keep pushing hard in your dual enrollment and honors classes. That shows schools you’re taking the hardest courses you can handle.