You’re a rising sophomore, so it’s too early to tell; however, you seem to be on the right track. I’d say, as sophomore year progresses, try to narrow down to only 2-3 ECs that you really have a passion for, and once you’ve done that, put as much time as you can into those activities. Top colleges want to see that you have a clear focuses (foci?), and you’ve achieved deeply in those areas.
Look up “How to Get Into Harvard and the Ivy League, by a Harvard Alum.” It should be helpful.