I was originally gonna do pre-med, but I changed my mind this summer and want to do CS. Most of my current ecs are bio- related. But, any CS activities are gonna be started when I’m a senior. How badly will this reflect on me on college apps, and is there anything else I can do at this point.
CS has become a very competitive major and you will be up against people with all kinds of CS related ECs. For some schools that are more tech focused, I think you will be at a disadvantage. I think you are going to need to be more strategic about your college list.
But, the reality is that students even in college change their minds about major.
Think about how you would answer someone if they asked you, “Why CS”? What exposure/experience did you have that sparked this new interest? Try to really narrow in answers to those questions and work that into your application - even if that’s in the additional comments section.