I have recently brewed my first all-grain batch of beer. It was a basic hoppy APA. All the readings hit within the target range for the beer style. The first gravity reading was a little in the heavy side for the beer style but within limits. The alcohol content was high though at about 7% BV. Now when it came time to bottle the beer, I did everything like I usually do when I bottle beer made with extract. I used the same amount of priming sugar and took all the same precautions as usual. However, two weeks later my beer seems to still be flat. Should there be any difference in all-grain beer and extract beer when bottling? I have researched extensively brewing all-grain vs extract, but not the bottling aspect. Should I just give it more time? Would adding more priming sugars help? Does the high alcohol content have anything to do with it? ( This is the highest content I have had.) Any suggestion about boosting the carbonation when bottling would be good.