Lindsay Lohan has had a rough week. Despite her various rehabs and drug treatment programs, Lindsay has been hitting the party scene for the last couple of months, getting spotted at clubs in New York, Los Angeles, London and Paris. Unfortunately, she hasn't done much work since her straight-to-DVD movie, Labor Pains, and her ill-fated fashion design attempts haven't exactly paid the bills. Even though she hasn't had a steady income, she hasn't cut back on her spending and is now deeply in debt.This week, RadarOnline.com learned that according to a source, "Lindsay owes credit card companies $600,000. One card cut her off last week, and it's only a matter of time before all her other credit cards cut her off, too."

While the starlet used to make big bucks doing club appearances, her falling star appeal and constant off-the-wagon behavior is taking its toll. RadarOnline.com reported that the invites are becoming very sparse, and Lindsay gets about $5,000 to $10,000 at the absolute most-a pretty rough drop, considering she used to earn an average of about $20,000 per appearance. Lindsay also made headlines in March when her landlord threatened her with eviction because Lindsay had fallen two months behind on the rent for her LA apartment. Lindsay allegedly paid $23,000 to catch up and stay.

As if financial woes weren't enough, Lindsay had her share of personal problems this week. Her younger sister, Ali, has been staying with Lindsay for the last few weeks and on April 22, the girls' estranged father Michael Lohan barged into Lindsay's apartment accompanied by the LA County Sheriff's Department, to check on Ali's welfare. Sources tell TMZ that Michael went to the Sheriff's Department and said that he was concerned for Ali's safety-this from the father who has not paid child support for any of his children for years. Lindsay took to Twitter to express her anger over the situation, writing: "OMG! . 'my ex-dad' just WALKED INTO MY APT like the devil's advocate with officers.when will it ever end.it's been going on my whole life with him-hasn't he caused enough pain?" (This tweet has been edited for spelling, grammar and punctuation.)

Ali was allowed to stay with Lindsay, but seriously, honey? It might be time to find a new role model.