I normally confine myself to simply answering an OP’s question, taking their word for it that their questions are sincere and relevant to their lives, without bothering to check out a member’s posting history, but those “other threads” have come up a bit too often.
OP, I’m inclined to agree with others that you are either not for real and having us on, or you are deluded. If this is you sincerely trying to find out information and engaging with people trying to help you, the UK system is not for you.
On another thread, you declare yourself a B student, with occasional Cs and Ds, aiming for two APs in computer science principles and environmental science for your junior year and aiming for a 27 ACT, and on here you are discussing Oxbridge? I think you are wasting our time and this thread could be closed.