Racism is in the world. No matter the profession...no matter what job a person in the world holds, they may be able to work their job, but excelling at people skills -- globally -- is quite the challenge for many people -- racist or not.
I went through nursing school in the early 1980's, and most definitely came up against people who were racist (either raised to be racist, or became racist at some point in their teen to adult years for their own personal reasons).
I have personally and professionally experienced racism, and over the past couple of years -- ageism.
Fortunately for me, one good thing I learned from my parents was not to judge people based on their color, race, ethnic culture, how they dressed, spoke, etc. For that reason, it was pretty easy for me to blend in various social circles, more difficult but not impossible to blend in with professional circles on my job, and to always first see a person by what comes out of their mouth for what comes out of the mouth is what the person is made of...in general.
We all get pissed when we are mad, and say things we later wish we hadn't said aloud, so I'm not talking about emotional times as this. I'm talking about our initial approach to others different than ourselves, and our continued approach to others based on our own pre-set prejudices.
I've had patients refuse me as a nurse because I'm not white. I've had problems with staff for the same reason. I'm often mistaken by patients and staff that don't already know I'm a RN for being a CNA, housekeeping, secretary. When they ask me to get the nurse, I walk away and return by saying, you needed to see the nurse. :chuckle
Stumbling blocks come into our path for a reason. With every stumbling block, stop and learn from it. How can you make it better. In what way can you reassure those you believe to be prejudiced against you that you are a nice person to befriend and work with? Those are times given to us to educate those who are ignorant to their approach or the vibes they are giving off.
Dare to face every challenge in your life with a positive attitude and assertive manner so you don't get walked on, but yet you are able to confront any issue with grace.
(((((hugs))))) Hang in there! You just be you. And be sure you aren't giving off any negative vibes in your approach to your coworkers that give the appearance of you not wanting to be professionally friendly with them.
As you get older, you'll see things more clearly and shuck them off of you much better.