I'm doing my second all grain batch, a New World Porter Clone. It's a 5 gallon batch, but I ended up with about 5.5 gallons. OG was 1.065 which was very close to my aim (1.067). First time with liquid yeast and I failed to burst the smack pack. I went ahead and pitched anyway. Took 24 hours, but fermentation was out of control for few days and bubbling in airlock just ended two days ago after a week and a half of fermentation. So, I racked to secondary and added dry hops but the gravity was only 1.022 and I was aiming for about 1.017, I have about 5.5% ABV now and was shooting for 6.5%. Anyway, is there a way to keep the fermentation going, should I add more yeast, what may have gone wrong?