I'm not going to help my brother pay for his uber
What type of situation is your brother going through?
I'm the only one who's able to help him pay for his uber and I can't afford another car right now and he's not strong enough to grit his teeth and handle the expenses.
While it is nice to help out family, it sounds like you've been helping out your brother for a long time. It is normal to expect your brother to start paying for his own rides eventually.
You make it sound really bad but I don't understand how the situation is my fault. How would you feel if you had to pay for your brother's car.
Just be careful to not be enabling your brother. If you continue to give him money when he needs it than he is just going to put off making any real money on his own knowing he can simply ask you.