Weaknesses:
Your activities seem to be done at different places. You did your clinical experience in Boston but no community service there (I'm surprised)? I presume your faith home is in California, but no similar house of worship in Massachusetts?
This makes me think you can't do both clinical experience and community service. That seems weird... balancing multiple priorities is very important, as is showing consistent ability during your undergraduate years. Commitment to service is important, and I hope you can show you can excel at both in your growth year.
Why do you want to be an endocrinologist? Why not research (also)?