It's honorable that you respect your parents, but I think you are over-generous is your assessment of where your mom is coming from. These comments she makes are born of something other than "concern and care," and there is more going on in her mind than just anxiety for your success and welfare.

I can't guess from what you've shared here just what that is, but I suspect your mom is somewhat malevalent in her intentions, and I think you have trouble considering that possibility. Maybe someone undermined her self-esteem when she was growing up. Your mother sounds like kind of a sourpuss.

At this stage in your life, you've earned the right to contradict her, now and then. It wouldn't be wrong for you to say, "No, Mom, I don't think anyone is going to dislike me for not taking these breaks." I wouldn't elaborate on it more than that, or get drawn deeper into a back-and-forth. But it just might have a healthy effect on the atmosphere in the room for you to put it out there that her premise is challengable. She comes on a bit too sure of herself, when she doesn't even know what she's talking about. That's a subtle form of bullying, and she deserves a little shove-back, when she does that.