Do I tell my guidance councellor I wanna apply to oxbridge?

Say to them: "I want to apply to Oxbridge, this is what I have planned ... can you give me any other tips on things I'm missing out on?"

The thing is if I let them know then the otyer teachers might get to know and my classmates. I haven't told anyone incase I don't get in or anything. But I obv will when I'm gonna apply. Would it be a problem if I just tell them later? Cus the process for lse is similar right so I'm guessing I won't miss out on stuff

The process for LSE isn't really similar, no.
Your counselor does not need to communicate with your teachers on anything, and your teachers likely won't bring it up to your classmates without justifiable reason. What makes you think they will?

Hello!
I understand your concerns regarding other poeple finding out honestly - at a lot of schools if only a few people are applying to Oxbridge it can be uncomfortable on offers day.
I would tell this to your teachers so they can best support you. As other people have said, Oxbridge is a bit different especially as they interview so hopefully your school can provide a mock interview if you tell them early on.
I would just make it clear you don't want other people to know. The uni applications teacher at my school never used to tell us anything about other applicants lol.
I applied to Cambridge last year (for medicine) but let me know if you have any other questions about the process I can help with x

Tysm! Does cambridge consider gcses as main factor? My gcse equivalents were mix of 6/7/8s so idk. Also I've heard that they consider an application based on the background as well like which school and place. Is that true? And are internships imp? I've seen people with insane work experiences and all 9s in gcse. What abt the scholarships? Ik it's rlly less for undergrad but since I'm international I def need as much. I was looking at the isdb one but I don't qualify as I'm not a resident in my home country and live abroad. Or just anything else in general I shoukd know abt the uni and the process

I believe Cambridge, like all schools, does consider A Level predicted grades as the main factor but GCSEs will play a part. Lost candidates normally have a high proportion of 8s and 9s but that doesn't mean you can't get in with lower grades.
It does depend what subject you are doing. For example, applying to maths and having a 6 in maths GCSE might be a red flag but having a 6 in English might not be as much of an issue depending on the rest of the profile.
Cambridge considers the application holistically. What this means is they consider any contextual factors (what school you go to, what their regular rate of Oxbridge progress is and what the average student's grades are, whether you live in an area with low progression to uni, etc.) as well as your grades, interview, UCAS statement and reference. If there was a reason why you might have performed lower in your exams than expected (e.g. Bereavement) they consider this as well.
I'm not too familiar with the funding opportunities for international students, I would recommend going on the relevant pages on the university website - they usually have a list of funding opportunities that are up to date. Sadly, I think scholarships are very limited for undergraduate degrees (I have been looking as well as I want to minimize the loans I take) but I'm sure there is still funding in the form of loans available.
Let me know if there is anything else x

Can I know if you're a home student or international? Also how would you say cambridge is in terms of convenience and just student life, like availability of stuff.

I'm a home student, from Scotland.
I'm currently on a gap year so I can't advise much about the actual city only the application unfortunately as I've only been there once briefly!
From what I have explored online though student life seems to be great and it's a beautiful city. There are so many clubs (if you go on the Cambridge SU you'll find a list) and I've engaged with quite a few on social media so far. The college system is also great because you are mutuals with more people, you have your course mates and your college mates.
I do think it is better than a lot of UK unis for accommodation as well because terms are quite short which means you only have to pay rent for the term if you want. A lot of colleges also have in uni accommodation for all 3 years undergrad whereas for a lot of other unis you have to go private for years 2 and 3.

About the collegiate system, does it matter which college I apply to? I've had some people say it does if I'm considering scholarship (as some allocate more) and that their interview styles vary. What do you think