After school help

I’m a busy single mother with 2 school aged children (1 x f16 1x 11m) living in Preston who largely works from home. I’m looking for someone with a flexible schedule who would like 2-3 afternoons work every second week. The role involves school pick up for the 11yo old (Audhd) taking him to karate or cricket, and prepping dinner whilst generally being a positive presence at home for the 16 yo. 3 hours 3 days per week - 3.30 - 6.30. 2 afternoons pick up is from after school care so can be a bit later than 3.30 ie 4.30 to start dinner or do some grocery shopping. Looking for someone friendly, low key and encouraging. Basic kid friendly meals required. Kids love minecraft, card games and musical theatre.