To put it mildly, Lindsay Lohan has had a rough few years. While dealing with criminal charges, arrests, probation, and rehab, her once fast-moving career has come to a screeching halt.

There are signs, though, that the ginger actress is improving both her health and acting prospects. Lohan starred as Elizabeth Taylor in last year’s poorly reviewed Lifetime TV movie Liz & Dick, and more recently guest-starred in the Charlie Sheen Network TV show Anger Management.

This week, Lohan appeared on the Late Show with David Letterman to talk about

Unfortunately for Lohan, Letterman did not slow-pitch the interview, joking about the star’s past before grilling her about her future. In the end, the interview ended up being a mini-intervention on national television.

Letterman began by reading a few of the monologue jokes he has made about Lohan in recent years, and moved on to being serious, asking her about her upcoming rehab and her addictions. Lohan will be heading for a long stint in rehab (three months) starting May 2nd.

“To be honest, I’m the happiest when I’m working and the healthiest,” said Lohan. “I think this is an opportunity for me to, you know, focus on what I love in life, and I don’t think it’s a bad thing. I think it’s a blessing.”

Lohan tried to steer the interview onto the topic of Scary Movie V, which Lohan was there to promote, but Letterman didn’t let up, pulling out a list of Lohan’s past convictions. Lohan ended the interview tearing up, dabbing at her eyes while Letterman complimented her on her poise and “spine” in showing up for the interview.

Following the Letterman interview, Lohan tweeted out her thanks to all of the fans who support her: