Mathilde (16 / Ms. ), French, Babysitter living in France looking for Au Pair & Nanny job in Germany, France & United Kingdom for 1-2 Months

Hello, my name is Mathilde, I am 16 years old and 2 brothers, a sister of 14, 10 and 9 years old. My 14 year old brother has a disability, autism.
I would like to be an au pair in order to discover other countries, regions, cities but also to be able to save some money for my studies because I have very specific objectives (dog customs). It's also to be able to make myself useful because apart from a few outings during my holidays I don't have much to do, either for myself or for anyone else, so this would allow me to help a family here. Going to England or Germany will allow me to work in both languages because I am preparing a Franco-German baccalaureate and would like to have more advanced English.
I think I can be an au pair thanks to my first family experience (we are 4 children and I usually look after my brothers and sisters as well as my cousins) then my experience as a babysitter around my neighborhood. I have a good contact with children, I like to play with them, take them for walks, in parks etc.