This may sound absurd but walk around in shopping centres and especially in clothing stores. That's how a lot of people get discovered. You may not have your breakthrough by walking around in malls but you may get one or two jobs.
idk where you live but it's easier if you live in places where model agencies are.
So you might have to relocate when you get the chance, until then yeah make a modeling profile and get a job at like Abercrombie and Fitch or American Eagle etc and model for them.