Lindsay Lohan Wants To BAIL From Betty Ford -- Ain't Gonna Happen

Lindsay Lohan is determined to leave The Betty Ford Center for greener pastures ... but TMZ has learned prosecutors are having none of it.

TMZ broke the story ... Betty Ford doctors have cut Lindsay off from her Adderall, which she has always said was a deal breaker. Sources connected to Lindsay tell us she's going "crazy" and is desperate to move to another facility.

We're told Lindsay has researched other facilities and found one on the west coast which she believes is suitable to complete her 90 days. She wants to move ASAP.

Lindsay is saying she believes Betty Ford is "old school" and is not sensitive to the problems of young people.

But law enforcement sources tell us ... prosecutors are "unbending" -- they will NOT approve any move. As one source put it, "She had 45 days to find a suitable place. She didn't listen to her people and just did what she wanted so it's her problem now." The source adds, "Not gonna happen."