Fortnightly afterschool care for teenagers

Hi. I am a single mum with a full time job. I have 2 kids (boy age 15 and girl 12) 50% of the time. My kids are very well behaved. I will need someone who can come mondays(not essential but if you have availability) Tuesdays andThursdays fortnightly. Start time may vary between 3pm pick up at school or 4pm meet kids at my house in Graceville. You woukd cook them a light dinner and have the kids clean up with you. You would watch the kids until 7:30pm. Start and stop tomes are flexible. If you have somethjng on we can work around the timeframes. I am lookong for someone who can commit to 6 months. Thank you!