Second-Career 50-ish RN working LTAC - Anxious about searching for new job

I was a leader in my class. My precepting RNs liked me but I did not click with HR. I got a few interviews but all the prestigious new grad jobs went to my young friends. My only job offer was from a notorious LTAC that promised me minimal training, a long commute, and the lowest salary in the county.

The first 6 months were very hard. I would Google procedures on my phone because I did not have access to policies and procedures. My coworkers were too busy to be helpful. Those were hard times but now I stroll into my unit like it is my living room. My boot camp days are long behind me. I know every inch of my unit. Tonight, again, I am the Charge RN due to vacations. I have worked hard to become an asset and I am well-liked and respected.

I am starting to apply to better jobs closer to home and I have some concerns. I think I should omit my advanced non-nursing degree because it flags me as older or sends the wrong message. (My career goal is 20 more years of bedside care, which is my passion.) One online application asked for my high school graduation date, which made me cringe. Is there a way around that?

My biggest worry is the training I do not have. Compared to those who had formal new grad training from a nicer hospital, I suspect my work style is not as sophisticated. Things are pretty fast and loose in my current unit. For example, with our patient load, you have to start your med pass 90 minutes early in order to get everything done, yet the charting indicates that everyone magically got their meds within 20 minutes of their assigned time. I worry that I will not know how to work in a facility that is not constantly cutting corners and short-staffed.

Also, and I know this is petty, I do not want to run into people from school and admit where I have been working all this time. I feel sad and self-conscious when I see on social media how well they all have done, while after nearly two years I am still trying to get in the door.

I try not to worry about things that I have no control over, and my RN career is what it is, but I do feel anxiety about reentering the job market again.