Applied at Sonic for Unknown

I've been unemployed since April and it's been really tough. I've applied to every job I can find, but even for entry-level positions, I keep getting ghosted or told they'll get back to me and then nothing happens. I recently had an interview at Sonic, where I've worked before, so I thought my experience would give me an edge. However, the interview ended with the usual, 'We'll talk to the team and get back to you,' but I never hear back. I'm 19, I don't have a driver's license or a degree, and I'm not in great shape to join the military, so I'm feeling pretty stuck. I know not having a license can be a dealbreaker for many employers, especially in my area, but I'm trying to figure out how to improve my chances of getting hired.