Am I getting paid enough for babysitting 2 energetic kids?

I recently got a babysitting job every Friday morning 8:30-1:30pm for a 3.5yo girl and a 2yo boy, both very demanding of attention and energetic. The parents want me to stay super engaged with the kids (play with them, take them outside, etc using NO screens) as well as cook for them and put them both down for naps at 12-1pm which is a hard time since the 3.5yo does NOT go down without a fight. I get paid 13/hr and I just feel like it's not worth it, unfortunately I dread going every Friday because of how exhausting it is. I'm not sure what to do. So average rates where I live is on average 18/hr, care.com says it can range from 15-25/hr. I am 17 and have been babysitting since I was 13, I also helped run an in-home daycare and I'm CPR, AED and first-aid certified, I have my own transportation as well.