Ariana Grandemay beback to workjust days after breaking off her engagement toPete Davidson, but it hasn’t been easy.

The newly single pop star, 25, shared a since-deleted selfie on Instagram Tuesday after sources tell PEOPLE she missed the final dress rehearsal forWicked‘s 15th-anniversary special, which will air on NBC later this month. Though she skipped the rehearsal, Grande is expected to attend the final taping.

“Can’t believe I almost let my anxiety ruin this for me today!” the singer captioned her photo that showed off her makeup, specifically her green lip shade.

Ariana Grande/Instagram

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Jeff Kravitz/FilmMagic

2018 MTV Video Music Awards - Show

One day after PEOPLE confirmed that Grande and Davidson, 24,ended their engagement, she revealed she’s focusing on her career in the wake of their breakup, sharing aphotoof herWickedrehearsal script (and leaving us to wonder if they’re really over “For Good”).

“It was way too much too soon,” a Grande source recently told PEOPLE. “It’s not shocking to anyone.”

RELATED VIDEO:WickedHeading to NBC for 15th Anniversary Concert with Original Stars — andAriana Grande!

Another insider close to the couple shared that they had broken up before officially calling off their engagement.

“They put on this front of being so happy but there were lots of fights and struggles behind the scenes,” the insider said of the “Into You” singer and theSaturday Night Livestar, who had been dating since May.

“They’ve gotten into arguments and broken up before and got back together,” the insider added.

A Very Wicked Halloween: Celebrating 15 Years on Broadwayairs Monday, Oct. 29 (10 p.m. ET) on NBC.

source: people.com