I have some details of colleges teaching interior design, if college is something in your near future - there are also some online courses featured that you may be interested in, in the meantime...
And there's lots of books to learn more about interior design here if you want to get a head start.
On a lighter note, I think you'll really enjoy this great little tool I've just come across this morning - easily create your own interior design sample boards online - its free to use, so have a play and see what you think...
