Applied at Lidl for Cleaning Position

I've been struggling to find employment as a young British adult, and I wanted to share my experience and seek advice. After receiving some valuable feedback on my previous post, I've started to rethink my approach to job searching. Many people mentioned that employers often prioritize experience over qualifications, which is frustrating because I have both. Despite my solid qualifications and experience, I keep facing rejection after getting to the interview stage. I feel confident during interviews, but I still receive rejections. Recently, I applied for a cleaning position at Lidl, which offered a 5am shift for £13 an hour, just 10 hours a week, and I was still turned down. It's disheartening to see that even for low-demand roles, the competition is fierce. I'm 19 years old, just finished my A Levels, and I have a lot of experience and qualifications under my belt. I'm reaching out for any additional advice from those who have been in similar situations or from employers who can shed light on what they look for in candidates. Any help would be greatly appreciated.