Another little point - it's far far better to be accurate and slightly slow than to be fast but end up with lots of typos (the RSA typing test used to record your speed and then deduct time for every mistake).
Another useful practice hint - look at the "f" and "j" keys on your keyboard. You'll notice they have little bars on them that you can feel with your index fingers. (I believe it was an aid for blind people.) Always start to type by putting your left hand index finger on the "f" key and your right index finger on the "j" key. The rest of your fingers should then sit naturally along the "asdf line" of keys. Use your left hand for the left hand side of the keyboard and your right hand for the right hand side. You will soon build up accuracy and speed then. Good luck with the job application.