Natalija, babysitting - B5 Birmingham

Hello, I am a 17 year old school student at King Edward's school and I am looking to babysit children older than 4 years old for a few hours a week or just for one off occasions. I am currently in my final year at school studying Maths, Chemistry and Economics and hope to go to university in September to study economics.
I have previous experience working with children, having volunteered at my local primary school as part of my community service placement. There, I helped look after and play with 4-5 year olds for 2 and a half hours a week for 3 months. I have helped coach hockey to 11-12 year olds as well as attended a beginners tennis coaching course for 4-8 year olds.
I am able to speak Serbian/croatian at an intermediate level. I would be happy to help children with their homework up to GCSE level as I have experience helping to tutor younger students.