Need Advice for Summer of Junior Year Activities

So I’ve applied to ND Leadership Seminars and Summer Scholars. I probably won’t attend summer scholars even if I get in bc. of the cost but I definitely will attend leadership seminars if I get in. I also applied to a 1 week Motorola High School internship. Finally, I’ll probably attend my high school tennis team’s tennis camp.

Assuming I get in and attend ND leadership seminars, I get in and attend the 1 week Motorola High School Internship, and I attend my high school’s tennis camp, is this an impressive enough summer schedule for T20’s? Please be brutally honest, and by the way, I shouldn’t have to say this but I’m not only doing this for college, but I would be lying if I said that it doesn’t influence my decisions.

If your answer is no, please suggest some summer activities that I should consider doing. I’m open to any suggestions.