Bioengineering (UCSD) Undergraduate pursuing mechanical engineering graduate school?

Hi all, I’m a student at UCSD about to graduate with a BS in Bioengineering. My gpa is pretty bad, around 2.8 and I don’t really know where to go from here. I know that it is hard to find an actual engineering job with just a BS in BE so I want to maybe apply to some mechanical engineering programs. I don’t have the academic grades and gpa to get into any programs as of now, so I was wondering what my best course of action would be…should I work a few years and try to get more experience first? But what type of job can I get right now that would pertain to mechanical engineering? I’m kind of lost and super worried about my future now. Any advice would be appreciated! Thanks!