Nick, 22, who was a part of another popular boyband Jonas Brothers that disbanded in 2013, said he could relate to Zayn, reported Ace Showbiz.
"It's a lot of pressure. I think that my situation was really unique, I had family with me," Nick said.
"I feel like it is a tough world already, and I was thankful to have family and walk through it with them. But it's all about how you balance it, and trying to implement a few moments of normalcy and quietness in a really crazy ride," he continued.
The Jonas Brothers, which Nick formed with his big brothers Kevin Jonas and Joe Jonas, split in October 2013 after cancelling a string of tour dates.
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Nick later launched his solo career and released his self-titled album in 2014.
Meanwhile, Zayn first left One Direction's ongoing tour last week before announcing his departure on Wednesday, March 25.
Following Zayn's exit, One Direction will continue as a four-piece. In a new message posted by Liam Payne on TwitLonger, he assured fans that they're "far from over.