How to really break-out from the "don't have related Degree, can't have job" trapping dilemma?

How to solve this seemingly entrapping issue/dilemma?

To be more specific: what if I took the wrong (4-years) Degree back at University (and also ‘wrong’ job-experiences in the past years),
and now want to work in a new, completely unrelated field,
where it, unfortunately, often seems to need a related work/education degree (for the “track record”) , while my options are currently, unfortunately again, seems to be limited due to 1) Money and 2) parent’s (especially my father’s) approval?

Or, is another “year(s)-long” uni Degree is actually NOT really required/necessary these days, and I could simply get a sort of a “Certification” short-classes ?

Say, for example, a 3–4 months certification class in Psychology (to get at least a “Certified” certificate, as a Psychologist, so as for the “track record” necessary for me to be able to venture further into for example: doing research, or writing a stimulating book, with enough credibility in the public?)

Hope to hear some good, practical feedback on this entrapping dilemma.
thank you.