Issues with feeling my back.

Hello hi, I’ve been off and on working out for awhile but I’m finally getting a solid routine going and I’m just at 2 weeks doing a push pull leg split 6x a week. The only issue right now is my back. I’m doing lat pull downs and rows, I’m using a wide bar a neutral grip with a slight lean I try to drive my elbows only my pocket but my arms fail first and I never feel any real tension in my back. Any simple things for me to try would be great