Courses over the Summer + Other things

Hello! I was supposed to work at a lab conducting research over the summer, but it was canceled due to COVID-19. Planning for this summer, I was accepted to take courses at Tufts this summer (Quant Research Methods and Principles Economics). Is this program and these courses going to be viewed as “good” in any way? Will it be helpful to my college application if I do well? Will it mainly be helpful for Tufts, or help with other schools (or would it hurt chances at other schools)? In addition to this, I am planning on doing EMT training and AP Biology through Johns Hopkins CTY. How would everything look together to a college admissions officer? I am a high school junior.

Thanks!