Yes, the sentence is grammatically correct. It expresses the speaker's frustration or disappointment that they have to pay for their own hair styling because their sisters are not able to help with it—they can't even use a comb.
Here are a few possible rephrasings:
1. "It's unfortunate that I have to pay for my own hair to be done since my sisters can't even use a comb."
2. "I wish I didn’t have to pay for my own hair styling because my


