A friend of Lindsay Lohan says the star is settling nicely into rehab, a day after her father told E! Online that the starlet is hooked to booze and the prescription painkiller OxyContin. "She's happy where she is and is just taking time to herself to learn and be okay," said the friend. "I've been in touch with her and she likes it... She's so much in the public eye 24 hours a day that she's gotten so caught up. I think she surrounds herself with good people generally, but all the pressure that she's around has created this alternate universe in a way and it's hard for her to stay grounded... She just needs to be away from everyone and not get attacked by the paparazzi. She's doing really, really well," he added. "She probably should be there and it will be the best for her. I think she's ready for it." As for her next movie project, Poor Things, which was scheduled to begin filming today in LA - both producers and co-star Shirley MacLaine are willing to wait. "In the spirit of helping Lindsay Lohan and her rehabilitation, we have been asked by Lindsay to comply with her wishes to continue working on Poor Things," MacLaine and a producer said in a statement released today. "We are trying to arrange the shooting schedule to facilitate her working at the end of the shoot to coincide with the completion of her rehabilitation. We wish her love and the blending of mind, body and spirit."