Kreiger0

I'm about to be a senior in high school in California, close to the graduation of my junior year, and some of my friends are/were enrolled in our town's Karate program. I'm interested in joining, however i need good grades next year. I plan on going to Karate twice a week over summer and during my senior year. Will this affect my ability to study? Is it too time consuming? the leesons go from 6:30 to 8:30. Im an AP/Honors student and i'm wondering if anyone has experience with this.