Matt Lauer and Lindsay Lohan Matt Lauer and Lindsay Lohan

Lindsay Lohan is determined to prove she's gotten her life back on track. Before she hosts Saturday Night Live this week, she sat down with Today's Matt Lauer,  and spoke candidly about wanting to show everyone she can be trusted again.

"I think that takes time," Lohan said during an interview that will air on Thursday's show. "Because people can say things all they want, but I think I still need to go through the process of proving myself with SNL, being on time, keeping my... stuff together."

Matt Lauer to interview Lindsay Lohan on Today

The sit-down comes nine months after Lohan canceled on Lauer at the last minute. Except for her recent Playboy spread, Lohan, 25, has kept a low profile while she completed her community service and fulfilled her probation terms, stemming from a 2007 DUI and 2011 shoplifting charges. She recently received a positive progress report from a judge, and her probation is scheduled to be lifted March 29.

Lohan told Lauer that partying no longer feels right. "That's not my thing anymore," she said. "I went out, actually, a few months ago with a friend and I was so uncomfortable. Not because I felt tempted, just because it was just the same thing that it always was before, and it just wasn't fun for me. I've become more of a homebody and I like that."

Lindsay Lohan to host SNL for the fourth time

The actress also discussed her next project in which she'll play the legendary actress Elizabeth Taylor. "We're in the middle of casting," Lohan said. "We start production soon. I've been doing tons of research, but I've always kind of researched her. She's always been a fascinating woman to me. So I'm really honored and I will not let anyone down, especially myself."

"I could see where it could be scary for people to invest in me, and I don't want people to have that reason to be scared anymore. So being able to have this opportunity with SNL and the film, I'm gonna do what I'm supposed to do, and enjoy doing it, and do it as best as I can."

A preview of Thursday's full interview aired Wednesday on Today.