It's not 10% every ride, it's 10% a week (I think). Be careful not to over do it and mix up your rides - do something hard today and something easy tomorrow and take a day or two off every week. If you injure yourself you'll fall off your new bandwagon and that would be a shame.
After about 9 years with no biking, I started up again last year and struggled with my first 6 miler and did 45 miles about 2 months later. Everybody is different, take your time and welcome to the forum!