The forward says he has learned his lesson after an episode of indiscipline saw him sent off prior to Brazil's shock exit from the tournament this summer.
Neymar has admitted to making "mistakes" during Brazil's Copa America campaign but insists he has seen the error of his ways.
The 23-year-old was sent off in disgrace during the group stage clash with Colombia over the summer after headbutting Jeison Murillo.
The red card saw him handed a four-match ban, which ended his participation in the tournament, but the Selecao captain is confident there will be no repeat of that indiscipline.