I went to an elite school. I had undiagnosed depression and ADHD and I almost failed out.
I don't think I needed more time on tests but I definitely needed medication and counseling. The counseling resources available at the time were not adequate and medication was difficult to get.
An "elite school" is not for everyone because everyone is different.
You did not need medication and counseling. What you needed was a regular public college.
Same. I was on academic probation freshman year. Managed to recover and graduate. But I didn’t get diagnosed with ADHD/ASD until I was 38.