1. You failed to get into a good university that viewed you as more than few paying cattle.
2. You failed to be worth anymore than a typical minimum wage worker in your part time work (lots of interesting research jobs and jobs through industry connections on campus for those who make a mark). You didn’t get any of those.
3. You failed to impress anyone in your time at university who might give you an internship. A prof. A visiting speaker. An alumnus with a company.
4. You failed repeatedly to get an internship (plenty of them pay, but are just harder to get than unpaid ones) when most of your cohort did.
5. After graduation, either nobody you met in school referred you or you failed those interviews.
In 4 years, nobody thought you were any good. That’s a pretty damning judgement.