Diploma of Psychology / Counselling / or Similar

Looking at a career change and psychology is something that has always peeked my interest. I know that psychology is a broad field, but I'm looking at the "lower hanging fruit" because I'm not wanting to be a highly paid psychiatrist but rather be well enough educated (and qualified) to work in my community where there's need.

This course pretty much looks like the thing...

https://www.counsellortraining.com/diploma-in-counselling.php

... but its ratio of time/cost doesn't fit into my current situation. But let me give them a shout-out for being great at being upfront about time/cost and quick to answer my questions!

When I web search I find lots of certificate courses but I feel like they're "fruit on the ground" instead of "low hanging but still on the branch". I'm NOT putting down certificate courses, but since I have zero psychology education I think I need something more robust.

When I web search for diplomas I find lots of vague offerings from different institutions, but it's very difficult to nail down what it really costs and what the real time commitment will be. Universities tend to be awesome at glossy photos of students cheerfully strolling through the campus, but terrible at actually giving you clear and concise information on anything. Everything is "meet with an advisor" which to me is as grating as when car dealerships put "please call for price".

So I'm looking for advice regarding...

Certificates - Am I wrong and getting a certificate(s) would be just as useful to me?
Diplomas - Anyone taken a diploma course in the field and can give me some "real world" insight regarding cost and time?

Thanks in advance!