ARMY veteran David Locke knows all too well the inner battles that can follow after leaving the service.For years the 37-year-old Rye resident, who was deployed to Afghanistan, grappled with the weight of post-traumatic stress and a sense of isolation. “I was pretty cooked … I worked for a few years (after leaving the army in 2012) but mentally couldn’t handle it,” he said, which included a time of self-medicating with alcohol and drugs to cope.But it was his love of fishing that ultimately helped him reclaim his life, and more recently, the discovery of Veterans for Fishing (VFF), that’s…