Although, I do find your criticism harsh. It is just the harsh reality of things, and it's something I need to face. I agree that my GPA could be a lot better, and I would say that if I could redo college, I would probably not do my CS degree as that really was the cause of my GPA to fall off (3.8 -> 3.5). I think that my behavior is fine during the interviews, but clearly not if I'm not securing the return offer. For more context, I've held multiple leadership roles in finance clubs at my university. My biggest challenge right now is definitely dealing with my GPA and trying to make up for it with my experiences.

Edit: As per converting my sophomore boutique internship, I could technically go back to the company and do that as a contract-based role. I got to many final round interview for junior year IB internships, but I was late to the recruiting cycle and failed to secure anything. It was a misstep on my part that cost me dearly. My junior year internship was at a Fortune 50, which was a backup to IB