Hey there,
I'm a 3rd year Product Design student at Ravensbourne and I use to be interested in psychology. During GCSEs I wanted to choose psychology since I was strongly interested in it but I changed my path to product.
Your A levels could lead you anywhere, depending on what path you would like to take and even if you may not be interested in the path you've chosen, there is always help to get you to where you want.
It might be good to visit Universities to see how they view the subject and how people got to where they're at. This helped me a lot when I was deciding what A-levels to take.
I chose the Product Design path as it could get me into designing a range of different products such as packaging for food, toys, beauty products and others. It could also allow me to design furniture, kids toys, technology base products and many others. There is so much to choose from.
As for Phsychology, you can check this website out:
http://www.prospects.ac.uk/options_psychology.htm It's what I used to help me decide if I wanted to do the subject or not.
Feel free to come and check out Ravensbourne for Design courses
it could help you understand where you might want to go.
Here's a link to our page
Click Here.
Hope this helps
Kay