Applied at small pharmaceutical company for clean room apprentice

I just received a rejection after interviewing for a clean room apprentice position at a small pharmaceutical company. I have 3 and a half years of experience working in a cleanroom environment for a medical device company, so I felt confident going into the interview. I thought I performed well, but now I'm left feeling discouraged and questioning if it was something about me or if I'm overqualified due to my computer science degree. The job market in tech feels incredibly tough right now, and I'm starting to wonder if employers are being overly picky. It's disheartening to face rejection even from smaller companies. I just don't understand what is happening anymore.