How can I get a job if I have a passive personality?

so I assume my interviews fail because I'm not BSing my way to the job

This is probably an inaccurate assumption - BSing isn't required to get a job and is far from recommended in any case.

How am I supposed to get a job when I don't cheat and lie?

By demonstrating that you are a good candidate - applying for jobs that you have the skills and experience for and telling the truth about the fact that you have said skills/experience.

When I don't chase and harass HR staff?

Well harassing HR staff is generally counterproductive to getting hired anyway.

When I don't guilt people into hiring?

Same as above.. there's no need to do this.

I keep getting denied

You don't mention any numbers but it's not uncommon to get a large amount of rejections or non-responses during the job hunt. Especially if you aren't the typical candidate profile (such as you lacking the qualifications you mention) and that can mean you need to apply for a larger volume of positions than someone else, but that doesn't mean you should give up - remember that it doesn't matter how many "No"s you get, you just need that one "Yes".

how can I get a job in spite of my personality?

If you know you aren't someone who can communicate your suitability for a role well in person then you'll need to work on other ways to get this across - make sure your CV is highly polished, really makes your experience and skills clear and easy to identify. Write a kick-ass cover letter.

And in addition work on your interviewing skills - you don't need to BS, you don't need to harass or guilt people. Just work on communicating honestly and clearly about your skills and experience. I appreciate that it's not easy - especially if you are of a shy persuasion and lacking in self confidence but it can be done and any small improvement will help. Do practice interviews, maybe join Toastmasters or similar if there is one in your area.