Play as much as you can
If you are doing an AMEB exam don’t just learn your list and extra list pieces. Study as many pieces as you can – even if you don’t learn every piece up to an exam standard of performance. This will increase your musical awareness and improve your sight-reading.
Sight read often
Believe it or not, sight reading can be fun. Not convinced? Dig out your old music books from a year or two ago and try playing through a few of the pieces you didn’t learn at the time. Not only is this good sight reading practice, it’s a good way to keep playing during the holidays. PLUS you’ll learn new repertoire that you might enjoy AND you’ll give yourself a confidence boost by sight reading music you once thought was impossible.
Renoir: Girls at the piano
From an AMEB post