I was a non certified medical assistant for 6 yrs. I did everything from running the front office to assistanting in the back office. I left to work for a major healthcare insurance company for nearly 12 yrs. I made darn good $$ in the insurance industry but my passion was nursing. As an NCMA, I knew I wanted more. This was when I realized I was born to be a nurse. Although my life lead me to a different direction, I have no regrets about getting my LVN 18 years following. I love being an LVN & although I tried to do the same as you, I realized I was doing myself a diservice. I waited a long time to become a nurse & why should I sell myself short? It took time, dedication, tears & many hours of computer searching then calling before I finally got my 1st LVN job. If you are passionate about it, then go for it with all you got & sell yourself! Design your cover letters specific to the job you are applying to & you do have medical experience. I created my resume with my old MA experience listed. You have the experience and if you have the passion then it will work out for you. Also apply to jobs outside of your comfort. Out of state and large cities. I did this & figured if anything came about, I would deal with it at that time. After everything I just accepted a position working for a Los Angeles County Hospital. Yes, as an LVN in the hospital.
good luck & never give up on your dreams. No one or nothing is worth it.