My twin brother was in same work study at NSA and loved it. The people that you will meet and experiences are priceless and one that a few will be able to match on a nationwide scale. However, coming from MD-3 congressional district (one of most competitive in country along with NOVA) do not think this alone will get you into USNA. Dont get me wrong it is a great bullet on your HS resume. When you sit down for your interviews make sure that this comes up and also work it your essays as well. Try to max out the CFA (for both USNA and NROTC), get your medical done asap and remember to enjoy your last HS year!
Should you not be able to get USNA (prepare for the worst and hope for the best mentality here), you will come away with a unique HS experience. As you know living in the area, having that TS clearance (good for 3 or 5 years) WILL open internships and other opportunities that most dont know about. I dont know if your math and science are strong or not, keep all of your options open. That being stated, if your end goal is too becoming an officer check out other programs as well. There is NROTC, OCS and NUPOC to name a few. NUPOC is an amazing opportunity in of itself! Apply after 1.5 years of college, get accepted/pass the interview and get a $15k check and a monthly check around $4k with allowances factored in and NO NROTC time(inspections and what not) and best part is your "enlisted time" counts toward your pay faster as in O1 over 2 /4. and the time counts toward your retirement. There is more but you can google it too. Neither my brother nor I, got into USNA; however, he is going to UPENN (dual major via M&T) and Im going to Yale also dual major. Im just pointing out other avenues to get a commission.