Lindsay Lohan has given up partying for good and is determined to prove herself as she attempts to rebuild her Hollywood career.

The Mean Girls star is eager to make a comeback after her professional reputation nosedived following regular run-ins with the law and a series of stints in jail and rehab.

She is currently carrying out court-ordered community service stemming from a 2011 probation violation conviction, but she has been given a boost by landing a hosting job on Saturday Night Live (SNL) and a role as Elizabeth Taylor in a TV movie.

Lohan has now revealed she wants to use her new jobs to rebuild her damaged reputation, telling TV host Matt Lauer, "I still need to go through the process of proving myself. You know, with SNL, being on time, being, you know, keeping my - can't say the word - but stuff together."

The star also admits the partying lifestyle which landed her in so much trouble no longer has the same appeal.

She explains, "That's not my thing anymore. 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."