I don't know what to do

1. I would recommend checking either the prospectus or the website for your specific courses as most will list whether they accept the 'unconventional' qualifications (i.e. BTECs).
2. Not at all. I did quite bad in my A-Levels, but I'm extremely hard-working, and managed to pick up an award for academic achievement in my first year. Uni is all about the work you put in, especially since it's so independent, so work hard, enjoy yourself, and the results will come.
3. I can only speak for mine (Nottingham), but BTECs were accepted on my course. Because of my A-Level grades, I sat a Foundation Year (which allows people from disadvantaged backgrounds or those with lower grades the chance to study at a top uni). The program was amazing, I made some friends for life, and I learned a lot about critical thinking, reflective learning, and other key skills that are super useful at uni (as well as for employers!). I'd recommend checking them out!
4. It's honestly up to you. If you want to pursue a career in Finance, or one that involves maths, then maybe sit one. But if you want to go into something completely different, or do something you enjoy personally for uni, then I wouldn't.
5. Again, it depends massively, but some unis look at other things besides academic grades for certain courses. The fact you got amazing grades means they can tell you'll be hard-working, and if you can get that across in an interview/personal statement, you stand a good chance!

Finally, please don't let anyone get you down about BTECs. Sure there's a lot of talk about them not being worth an A-Level or such, but as long as you're keen, hard-working, and can do well in essays and/or exams, you'll be able to show admissions tutors that you can handle uni just as much as anyone else. I hope this helps, and if you have any other questions, feel free to send a message.

Thank you for your reply! I was thinking about doing Foundation Year, but then I'm not sure if it is really worth it. Since I'm from disadvantaged background additional 9k to 27k sounds very expensive, I know that you can get student loans but, it's just, I'm not sure if I will pay everything off at the end. What about finishing an undergraduate in good uni and possibly do masters in prestigious ones at some point?

Thank you for your reply! I was thinking about doing Foundation Year, but then I'm not sure if it is really worth it. Since I'm from disadvantaged background additional 9k to 27k sounds very expensive, I know that you can get student loans but, it's just, I'm not sure if I will pay everything off at the end. What about finishing an undergraduate in good uni and possibly do masters in prestigious ones at some point?

1. Yes, some say they don't accept BTEC so they would have no reason to lie.
2. No, not at all.
3. Please please please explore contextual offers- an exams officer/head of sixth form etc at your school will be able to inform you more about this but basically makes it clear that you have performed outstandingly in an area with typically low achievement, especially in case you happen to not get the grades you said (but I believe in you!)

Unfortunately it is true that a lot of people can be snobbish about a-levels vs btecs, it's not a TSR thing. However your grades are absolutely outstanding and you should be so proud of how hard you're working. I went to a secondary school with similar results and know what it's like to be around people who aren't reaching what you are.
Unis WILL accept BTECs with those results! I'm not an expert on the course you want to do, but look around at the universities you would be interested in and see what they require. I just had a look at York (my uni) and for comp sci they require DDD for BTEC but specify an A in a-level maths also and I feel that may be a theme so I would consider taking that separately if you can, after your btec. The university experience is not going to be great for a while anyway with the pandemic, and it is worth taking the time to get into the place you want to go to to kickstart your career. After being at your school it will be wonderful to be with other high achievers and really inspiring.

Thank you for your reply! Unfortunately, there is quite high a chance there is going to be a second wave, it might be even worse than the first one. I feel like I'm better off taking a gap year and do A level maths as a private candidate + maybe even learn some comp sci content and practice A level exam style before uni, I think I'm very capable of achieving a high grade like A or A*.

Regarding universities, there are some very good unis that accept BTEC in computing. Like Leeds, Nottingham, York (they can consider my maths units in my course), Kings College and etc. It's just, I don't know, I feel like I might struggle for some reason. Though, as the person above stated that it's mostly the work you put in, if it's actually true then I will work very hard to achieve a good degree.