Her celebration fell flat.

British influencer Katylee Bailey was knocked for boasting on TikTok she had bought a home and was officially mortgage-free at 21.

“Biggest achievement of my life. Here’s to my new chapter,” she wrote in the caption of the video, which has touted nearly 4 million views since it was posted last week.

“Mortgage free and a homeowner at 21 baby,” reads the in-video text.

In the 11-second clip, the 21-year-old can be seen dancing around with a fake champagne bottle that emits confetti. Others didn’t join her in raising the roof.

“I feel like maybe read the room a bit of the economy right now & how low people are feeling about their finances,” slammed one TikToker.

“And then there’s me with $0.10 for the rest of this month,” lamented a second person.

“I can’t even afford to buy myself a dairy milk bar from co-op,” groused a third.

Bailey posted an emotional follow-up video addressing the negative comments.

“I just wanted to come on here to say that I’m sorry to anyone who feels like I’m bragging about the house thing,” she sobbed. “Yes, the system is absolutely f–ked, I will never get my head around the fact that I’ve become so lucky.”

Bailey, who started her TikTok account for “a bit of fun” as a teenager, told the Telegraph and Argus in 2021 she earned up to $1,250 a video.

“It was just for a bit of fun in the beginning because everyone else seemed to have it, and it was a good way to make friends, but until last year I had about 200,000 followers,” the influencer revealed to the outlet at the time. “I started posting properly during the lockdown, and it just grew from there.”

The Post reached out to Bailey for comment.

Much of Bailey’s content focuses on her everyday life. She’s landed 2.8 million followers on TikTok and 370,000 on Instagram.

She told the Telegraph she dropped out of college, despite her parents’ wishes, to pursue her social media career full time. That risk appears to have paid off.

Several of Bailey’s Instagram followers think so as well.

“This is amazing news. Well done you,” one excited fan said about her home announcement. “This is one heck of an achievement.”

“Good on you girl enjoy ur good fortune and your life,” another encouraged.

“Well done girl ! Truly,” a third person congratulated.

And several of Bailey’s fans sought to comfort her amid the backlash.

“You should be shouting it from the rooftops this is a HUGE achievement. They’re just bitter,” one declared.

“We are so proud of you,” cooed another.

“I’m so sorry people have made you feel as though you have to apologize. Breathe angel. You earned this,” a third urged.