i would also recommend sentdex
https://www.youtube.com/user/sentdex
i think his channel reflects quite well the fact that with python there are no limits...
but anything programming related is learned best when there is an actual problem you try to solve... for example im currently learning sql because i wanted to build an email newsletter program...
I also am at a point, where I need to take a detour and just learn sql fundamentals.
That stuff is so far out, I think it would not matter much if you had to learn an entire new language to go along with it ...
ye his newer videos are really intense stuff but if you look at his older ones he actually builds up all the way to the newer ones teaching you machine learning and before that how to use pandas (i recommend learning to use pandas if u do anything with data) i saw also some beautifulsoup tutorials which is a module i actually used recently and thought its pretty cool
Have you watched the two videos by techlead, which I linked ?
You might notice that they contain only very general advice and no details.