Hello userjeff !
I would recommand you to go on this site once a day instead of once a week. You can stay only 5 or 10 minutes if you want to. But practicing every day is much more effective and will make you improve way more than just once a week.
I also recommend you to try ths Sudden Death mode. It will force yourself to be precise. Good luck !

My typing speed still isn't great but alot better than it was. Maybe equally important is I now enjoy typing because I forced myself to learn the correct technique. Ive improved by visiting this site once a week and trying to type five passages in a row, meeting at least 95% accuracy on each one.