<human>: Condense the text into a few key points

Hi, hope I'm posting in the right sub. If not, please direct me to the correct one.

I have been working in my medical office, which is a corporation, for 7 years. I started out with simple tasks, i.e. scanning documents, organizing charts, etc. About 5 years ago, I was given more responsibility. Currently, my job title is Medical Assistant and the Medical Records Department (I say department, but I am the only person that handles medical records in my office.) On top of that, I am in charge of handling other tasks in the office, such as opening the mail, sorting through it and making sure each document goes to the proper department, and other smaller tasks my manager will ask me to take care of.

My job is stressful, the biggest factor being that I am both a Medical Assistant and the Records Department. While it's stressful, I enjoy what I do and perform each aspect to the best of my ability. I arrive to work 15 minutes early every day, am ready to start working the moment I arrive, and have not had a single bad remark mentioned about me.

As much as I enjoy my job, I know that I am worth more than I am making. I am 25 years old, I'm focusing more on making sure I can provide for myself and my future family. Also, I am aware that, if I decided to leave my current position, the company would have to hire at least 2 full time workers to handle the work I do.

So I'm ready to ask for a raise. However, from other coworkers experience, I know my manage will not help. She has told a few coworkers "the company does not like giving out raises", "the company is broke", etc. Whether that's true or not, I still want to inquire about a raise. If they are not able to give me a raise, I may have to start looking for another job. But I don't want to start looking if there is a possibility of getting a raise.

Basically, how do I ask for a raise in a professional manner? Also, how do I make sure that my manager makes sure A. my request is brought to attention or B. does not harm my chance of receiving a raise?
<bot>: Been working for the company for 7 years doing multiple jobs, need a raise, how do I ask for one and how do I make sure my manager doesn't get in the way?