Are you an international student? (I ask because of the TOEFL and because some schools have different standardized test criteria for international/domestic students). If you are international, that may reduce your admissions chances and may affect your eligibility for financial aid at many colleges.
Given that you’re a junior, I would back off on SAT prep. Because test sittings continue to be canceled due to coronavirus, unless you have reasonable certainty that your local test center is functioning and will continue to function during the pandemic, maybe wait on this? I know current seniors who have had the test cancelled 5-6 times in a row and all that prep was essentially wasted.
There are almost no schools in the US right now that are requiring SAT II tests and some won’t even consider them. So you could take that off your list. Or you could prep for these next summer.
Finally, if you are hitting your target on your practice tests, there is little value added in continuing to do them.
Of your ECs, obviously skating is the main one so keep that. It seems like you’re least passionate about MT and it’s a big time commitment so maybe cut that?
A note of advice, one of my kids had a very time consuming EC that occupied 20-30 hours per week nearly year round. There were a few other school-related activities around the edges. Aside from that, it was schoolwork and not much else. It was tiring and sometimes stressful but they loved the activity so it was worth it. They got accepted everywhere and got scholarships at most places. A more balanced life happened in college. You don’t need to be all things to all people. Learning to set limits and to prioritize is a valuable life skill - good for you that you’re addressing this now.