Hi! I think my timeline was fairly typical for most students. I applied to 14 schools in total.
Over the summer, I filled out my Common App and started brainstorming CA essay topics. I was at an intensive academic summer program for the majority of the summer (4 hours of reading a night, research paper, etc.) so I couldn’t start essays then. I imagine that most high-achieving students are doing something over the summer, whether it is working, travelling, marching band, attending a summer program, etc. However, I was done with my CA, essay and all, by mid-September. I did not feel rushed at all and had a lot of time to edit my CA essay. I then went through my applications one by one. I did my supplements for Yale, edited, and submitted, and then moved on to my other EA schools, many of which were safeties. I was done with all 6 EA schools by mid-October, and then began working on all of my RD applications.
In the months I spent in between EA and RD applications, I found a lot of resources online, particularly on YouTube. There are a ton of valuable videos on there, and many, many school-specific advice videos from students, admissions panels, and the schools themselves, all of which I found pretty late into my application process. Before doing anything, I would recommend binge-watching the more general videos about the CA and what admissions officers look for; they resonate much, much more than a College Confidential post or a PrepScholar article, as helpful as those two resources are. It’ll give someone an idea of what they need to do, and also give them a resource to go back to when editing their application.
Again, I would recommend waiting to do the more heavy-hitting schools. After applying to Yale, I applied to all of my EA safeties and a few EA targets (all public schools that I wanted to hear back from). In the RD round, I applied to my targets first and saved Brown, UPenn, and Harvard for last. For example, the UPenn supplement, which I wrote last, used whole blocks of text from 3 different supplements and incorporated a recent life experience. I think it was the best essay I wrote. Throughout the whole process, I was constantly making edits to my CA activities section, changing wording to make my actions really stand out, per the advice of YouTube videos.
With this timeline, I didn’t know that my Yale EA application was weak when I submitted it. It didn’t occur to me, at the time, to change this or that or switch the wording or alter the order or write about that thing that I did that time. That really came with time and practice, which I got after applying to my 10 safeties and targets.
Obviously, this is just advice for my timeline. If someone can start early in the summer, watch the videos, read the articles, and begin writing essays for safeties and work their way up, power to them. They will probably have a very strong application by November 1 and could apply EA with the same confidence that I applied to Harvard, Brown, and UPenn during the RD round.