Is there any reason why a homeschooled student such as myself, may have a disadvantage when applying to college or university?
Q and A means you ask 1 question. You have written way too much and asked too many questions. This is not an open-ended form of therapy. In the future, limit your inquiry to 1 singular question. I see 3 questions so I will answer them but next time just ask 1 question.
In general, since you do not explain what kind of colleges or universities you are applying to, college admissions officers shall not categorize you negatively for being homeschooled. As long as you have challenged yourself with the hardest course rigor, received excellent marks and test scores, have excellent writing ability, have a plethora of unique talents and abilities outside of homeschool, you will be treated no differently than someone who attends private or public school.
You may write about your transition experience if it adds to your narrative or helps someone understand why you think the way you do or if was an important inflection point that led to something. Writing about it for the sake of explaining a timeline is unnecessary.
Following up, I don't think admissions officers benefit from reading about self-paced learning versus in-class learning. What they are determined to sort out as quickly as possible are whether you are a.) meet the rigid qualifications for their school, b.) whether you are equipped with the skills and tools to succeed at their school, c.) and whether you are an excellent fit for them. Only they know what sorts of cohorts they are most interested in at the time your application will be read. Perhaps you will get a bump not because you were home-schooled but because you are a good Rower (crew), or excellent Bassoonist, or have amazing leadership skills because you served on 3 Board of Directorships.
How you were educated K-12 doesn't matter as much as what you know and what you can do. Good luck.
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