In my position I hire a lot of students for a lab work. I've come to realize that the best workers aren't necessarily the people with STEM majors; the best workers are generally people who are interested and feel a little over their head. I've had many terrible pre-meds, and always had good luck with my English majors. If you're willing to start low in the food web, get a job as a lab technician somewhere (universities are often a decent bet). If you can, prioritize places that look like they have work or instruments that you'd enjoy working on. You can amass a pretty good amount of technical skill from a decent lab job.
If you have higher ambitions for aerospace technologies... probably means going back to school. But that would have meant going back to school regardless of your undergrad degree.