David Wright sounds like a tortured soul these days, trying to explain how and why he is mired in one of the deepest slumps of his career, with just one extra-base hit since the All-Star break.

He insists his left shoulder, in which he received a cortisone shot nearly a month ago, is not a factor in hitting .194 so far in the second half.

Instead Wright is convinced that he turned himself into a mental mess at the plate, so quick to make changes and adjustments that essentially he has forgotten how to hit.

“I’ve made some mistakes this year, revamping some things with my swing that I probably shouldn’t mess with,” he was saying on Wednesday. “Especially after the All-Star break I started trying to change things when I didn’t get the results I wanted. Pretty soon you’re trying something new every at-bat and thinking about all the wrong things.

“Instead of realizing there are going to be times during the season when you’re going to have a hiccup and you need to ride it out, I was too quick to make adjustments, and you get to the point where you can’t remember what it felt like when you were going good.”

If that sounds like a man whose confidence is surprisingly fragile, considering that he’s such an accomplished veteran, well, it’s really just the nature of hitting.

And some hitters just live and die a little more than others with every at-bat. Listen to Paul O’Neill call Yankee games on TV and he still sounds haunted by his 0-for-4s, any one of which he’ll tell you could make him think he might not ever get another hit.

Wright, meanwhile, has always agonized over slumps but his talent was such that he bounced back with flurries of sizzling offensive production.