’KRISTEN Stewart has explod­ed in a jealous rage at rival actresses Jennifer Aniston and Jennifer Lawrence, as well as singer Katy Perry, sources told The ENQUIRER.

Now, a worried friend fears the “Twilight” sexpot is “losing her grip on reality.”

The 22-year-old troubled star is said to be having a confidence crisis.

And she has been telling pals she fears her career in Hollywood may be set to nosedive following last year’s cheating scandal when she got in­volved with married “Snow White and the Huntsman” director Rupert Sanders.

“Kristen’s feeling very sorry for her­self,” a friend told The ENQUIRER. “With the awards season underway, it’s hit her just how much her leading lady status has plummeted.

Seeing Jennifer Lawrence be­ing worshipped on the red carpet, winning a Golden Globe and getting nominated for Oscars has really got­ten to her. She’s come out of nowhere and is getting the adulation that Kris­ten used to dream about.”

The “Hunger Games” actress, 22, who won a best comedy actress Golden Globe for her role in “Silver Linings Playbook,” is not the only ri­val to incur the wrath of the shamed star.

Even America’s sweetheart, Jen­nifer Aniston, 43, is in K-Stew’s line of fire. “Kristen’s always been a big fan of Aniston’s deadly rival Ange­lina Jolie and has never really rated Jen as an actress,” revealed another source. “She can’t understand why Jen manages to hog the headlines every time with very little effort.

“She’s not that talented as an ac­tress, nor is she the most beautiful. Kristen believes if it wasn’t for her bitter rivalry with Angelina, Jen would NOT be this fa­mous these days at all.”

Despite reassurances from boy­friend Robert Pattinson, Kristen is terrified her movie headlining days could be numbered. “She knew there would be a backlash from her cheat­ing scandal, but the scripts have definitely slowed down in landing on her doorstep,” said the insider.

The actress also hit the roof when “Men’s Health” magazine recently released its “Hottest Women of 2013” list and placed Jennifer Law­rence fourth while Kristen came in at No. 89. The poll was topped by singer Katy Perry.

“Kristen couldn’t believe that Katy Perry was No. 1 on that list,” said the insider. “She’s known Katy for years and doesn’t think she looks that hot, especially without her makeup.

“Kristen’s in a really dark place at the moment and Rob is worried about her.”