It is really hard to win more than 12 games in the NFL. In fact, no team did it last year, not even the Seattle Seahawks, who went 12-4.
The Seahawks have only won 13 games twice in franchise history, and they went to the Super Bowl in both of those seasons. Of course, that was in 2005 and 2013. On the bright side (?), they have only lost more than 12 games once in franchise history, when they went 2-14 in 1992.
Now I kind of want to challenge your eternal optimism.