A level options problem

I'm applying for a levels now but wanted to go for subjects I know I'd enjoy.Would you say these subjects would be suitable for getting into studying psychology at a Russel group university?
-Psychology
-Sociology
-Politics

Quite possibly these would be fine because in many cases Psychology is classed as a 'relevant science A2'. Look at specific universities though. Psychology and Sociology are both great subjects btw

However even if you think you're firm on reading Psychology at University keep your mind open. I wanted to do Psychology for 3 years and then on the 8th May this year I changed my mind. Luckily I was repeating year 12 at the time so had not yet applied to University.

Best of luck