Applied at Citi for Unknown

I used to work at Citi many years ago, and ever since I was laid off from my last job 11 years ago, I've been trying to get back in. I've applied to multiple positions at Citi, even got a few referrals, but the rejections keep piling up. One of my interviews was particularly disheartening; only 2 out of 3 interviewers seemed engaged, and I never heard back for a second interview. I've tailored my resume for various roles that I believe I'm a great fit for, but all I get are rejection emails. The last application made it to the recruiter review stage, but after almost three weeks, I received an email saying I wasn't moving forward. At this point, I'm seriously considering not applying to Citi again. I really wanted to return since it was where I started my career in operations, but it feels like maybe I'm being protected from that place. I don't want Citi to affect my mental health like this. Has anyone else felt so discouraged by repeated rejections from the same company that they decided to stop trying?