Is my frustration valid if my brother keeps charging rent while I’m struggling?

I've had my hand held most of my life. I know im very fortunate. My brother and I bought a mobile home with some money out grandparents left us behind. Be bought it in 2017. My brother lives in another city. I live in the mobile home, and pay him $670 a month while he pays for the home insurance. So I've been kind of a job hopper. I worked at McDonald's for 4 months and quit 2 months ago. On my last day, my gm said I could always come back. I've applied to countless jobs, and got a couple interviews and no one will hire me, so I was gonna go back to McDonald's. So I applied and had an interview yesterday. It was some guy I never met before so my gm doesn't even know I applied. This guy said he was hesitant to hire me so he's gonna talk the owner. I can barely pay one more month. I told my brother im doing bad financially but he still wants me to pay him rent to teach me responsibility. He said that if I start working, we could consider lowering the rent, but that would he very helpful now. Im just frustrated. Im probably just being entitled though.

Is my frustration valid if my brother keeps charging rent while I’m struggling?
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