I did a slightly modified version of Yoopers Dead Guy Clone and got an OG of 1.066. I checked the gravity after a week and it was at 1.024, a bit high. I checked it again a week later (by now it's been fermenting for 2 weeks) and it was at 1.022. I used WLP060, the American Ale Yeast blend, which should have an attenuation of 72-80%. Right now i'm at an attenuation of 67%. I racked into the secondary hoping it would come down to 1.018 (72.7%) but I'm not confident it will. Is it okay? What should I do?