I can’t emphasize this enough!!!
I know sometimes we can seem harsh and that we are piling on, but everyone does so because we want you to succeed!!!
You sound like such a smart and accomplished young person and we don’t want you to inadvertently sabotage yourself by graduating early.
Lots and lots of high achieving students take way way more classes than what is required for graduation. Top schools expect to see high rigor on HS transcripts. Having access to dual credit classes while still in high school allows you to show that rigor and maintain your status for financial aid as a freshman.
Schools like NU and Yale are very generous with financial aid for low income students. If you get your grades up, do well on your standardized tests, and have high rigor, you have a chance at these schools. They should cover your costs for your 4 years.
If you want your dual credit classes to transfer, your best bet is going to be staying in state. I know that you said that isn’t your preference, but you have amazing options in Texas, it will be more affordable, and those DC classes will likely transfer.
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I’m going to give you my personal example of my D. She also took HS classes in middle school - English, Science, Math and Spanish. Those credits did count on her HS transcript and put her into more advanced classes in HS.
English: H 9, H 10, AP Language, Lit
Math: H Geometry, H Algebra 2, H trig/precalc, AP Stats, AP Calc, Computer Science (CS fell under the math department at her school)
Science: H Bio, H chem, H physics, AP chem, AP Physics C (1 semester of E&M, 1 semester of Mechanics), Organic Chemistry
Social studies: World, AP Euro, APUSH, DC Gov (1 semester), Econ (4 years)
Foreign language: Only up to DC Spanish III because of a scheduling conflict (she wanted to take 4 years and her guidance counselor noted the conflict on her LOR).
4 years of required theology
Electives: Engineering I, II and III; 2 years of orchestra; Health; PE
This was the maximum number of AP classes allowed in her HS. She scored in the 98th percentile on all her standardize tests.
The only summer class she took was PE. She used her summer for volunteer work, her sports and music, and then paid work once she turned 16.
She was primarily looking at large public flagships, not the NU’s and Yales of the world.
I share this to show you what the “average excellent” student does in HS. At the school’s you are targeting, you are going to need to show above average excellence. You won’t be able to do that graduating early.