Depends, if there are recognized certifications those always help. Otherwise, your previous work does matter. I’m sure it’s a terrible experience, but it’s still possible.

If I didn’t graduate high school I would probably just lie to get my foot in the door.

Well… nobody from the UK “graduates” from school. We’re doing fine.

If you can demonstrate competence, credentials usually matter less. I would recommend just getting a GED so you can check the box on the job application, it will make getting your foot in the door easier.

Intense labor trades are far less picky about achievements or other traditional black marks. Even then you probably need a ged to move up much further than general labor. Union trades can probably help you out.