Help single mom with angry toddler



I am a single mom who works full time. My 2.5 year old stays home with my mom and sister in law with her 2.5 year old. When I get home from work my child tells me to go away and go back to work and hits me. I know he can’t understand why I have to work and his cousins mommy stays home. I try to remain calm and be there for him but I feel like I am failing. I have to work to support us there isn’t another option. What can I do to help him thru this stage ?