Freaking out!! DON'T KNOW WHAT TO DO ON RESULTS DAY!! Clearence

Ok, so here's the deal:

1. I did A-levels and secured my differed firm offer (Southampton Biochemistry) with the grades AAB.

2. I called Durham for adjustment to its Pharmacy course and got accepted.

3. I withdrew my place in Durham after they refused to give me a Gap year (ESSENTIAL for me).

4. In the gap year I decided to resit some of my modules plus an extra A level subject, while applying for medicine ( I don't want to be a doctor, I just thought that it's a good way to get into non clinical research - I know, I know, I was wrong -)

5. I didn't get any offers (Thankfully) but I still have my Southampton place.

6. I should be getting much better grades than AAB in th 17th and I want to go through clearing/adjustment again to get into a better University.

Ok now that you know my situation. Here are my questions:

1. Do I call for clearing or for adjustment?
2. Can I even call for either to begin with?
3. Is there a possibility for me to call them before results day since I already have results?
4. If I call them on results day, must I tell them about my "original" grades as well as my improved ones or can I just tell them about my improved grades?

These are the questions I have right now.

Sorry about the clickbait title, if I put a simple title very little people will click or reply.

I thank you for your patience and your answers.