In Touch recently reported that Selena Gomez checked into rehab for anxiety and depression, but adapting to her new surroundings hasn’t been easy.

“Selena keeps saying she feels like hell,” an insider told In Touch exclusively, adding that the 24-year-old has been having “horrific nightmares” while at the facility.

MORE: Selena Gomez Had a ‘Meltdown’ After Justin Bieber Ignored Her

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Sel’s downward spiral resulted after months of excessive drinking and partying — and while she knows she needs help, residing at the Brookhaven Retreat in Seymour, Tenn., isn’t exactly ideal.

“A few weeks ago, she called her friends and family and told them she felt trapped,” the source added.

For more on Selena, pick up the latest issue of In Touch, on newsstands now!

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