Lindsay Lohan — The Only Thing She Wants to Nail Is Her New Movie Role

Lindsay Lohan is focused on her career now that she's off probation and to make sure nothing gets in the way of her upcoming roles, she has sworn off dating for the time being ... TMZ has learned.

Sources close to LiLo tell TMZ she wants to avoid any relationships or emotional attachments as she gets ready to shoot her Liz Taylor movie for Lifetime. Our sources say Lindsay wants to devote all her spare time to reading the script and getting Liz's persona down pat ... rather than focus on a new relationship.

We're told Lindsay has had her fair share of intense relationships (ya think!?!?) and she doesn't want anything to derail her comeback.

Sorry, boys.