It was many months ago, so I did some research now and I think these share the same ideas. First is about the basic idea of long term financial management [1], and these two [2] close to me since we also have a big family. Probably this is a very basic level for many people, but since my parents never had positive money management habits (my parents family from ex-USSR) it was the real breakthrough for me.
1. https://www.youtube.com/watch?v=wJB90G-tsgo
2. https://www.youtube.com/watch?v=ulr1HAaF_JU, https://www.youtube.com/watch?v=ZKU5bEf192A