The Lakers were undone by Amir Johnson, who sparkled for the visitors, having scored a career-high 32 points at the Staples Centre.
"I'm just insanely critical. There was a bunch of things that I completely messed up on," Bryant told reporters after the game.
"My rhythm is completely out of sync in terms of being able to read passing lanes and judge the timing of players in between those lanes and so forth. But I guess it's a start. I guess a start is good."
The Lakers currently sit fourth in the Pacific Division with a record of 10-10.