I recently brewed a beer with a OG of 1.055. I was trying to hit around 1.01 or slightly lower for a ABV of around 6%. I used 22 grams of Danstar Wheat Beer Yeast. After a few hours I started to see some activity and now after about 2-3 days ; most activity has stopped. I checked the gravity and it was around 1.02. I was expecting to get a lower FG than this. The temperature has been between 66-76 deg F. When I pitched the yeast it was around 76 deg F. I did rehydrate the yeast before pitching it to a temperature around 76 deg F. I was expecting more attenuation than this! Should I try more yeast? Thoughts?