Advise needed...

So I have been working pediatric private duty for 2 years now. I have not had a pay raise and I am barely making it paycheck to paycheck unless I do OT (which the company don't mind). I have asked management about raises and I was told they don't give raises, however a nurse I trained mentioned HR had said they do give. I also asked about benefits and again I was told they don't offer any 😣 and again the new nurse said they did offer it to her. I also talked to a friend that works there and she said she is getting benefits from the company.... any advise on how to bring it up without throwing the nurses under the bus??? How do I request a pay raise without sounding needy or greedy???

I have been thinking about quitting but I love my patients... I know it's not about the money but I gotta live out of something. 🙁

The company is also going through changes and I am hoping they make it better for the field nurses but I believe I'm hoping for too much...

It's not that bad though they are very flexible with our schedules which gives a great opportunity to go to school, when you request extra hra they will give them to you...but still

TIA