“I’ve worked at ??? wholesale for 4 years, I work in automotive sales. I’ve seen other pe asdfadsf ”

I've worked at ??? wholesale for 4 years, I work in automotive sales. I've seen other people at other deparments raises and promotions and have been there less then me. my sales are unbelieveabley good. i feel like In under apprecited and under paid. should I quit my job or wait and see if something bigger at my job coming for me, JC