How to increase gpa

How can I increase my gpa in one year. I am a junior next year and I want to increase my chances of getting into my dream school

Get better grades, and take classes that carry extra points (if your school uses a weighted GPA). It’s that simple, no secret tricks

Take a ton of AP classes.

Im more worried about unweighted than weighted gpa

At this point, it is hard to increase your GPA suddenly unless you dramatically change either your study habits or your course load. Taking easier/remedial classes would help your GPA, but colleges will catch on. The other way would be to study more and/or better. Online there are countless resources on how to study, and I would recommend you check those out because improving your study skills in high school will only help you once you are in college.