Lingopie is not enough for proper learning. Just vocabularies. Grammar is needed. A good start is here: https://storylearning.com/learn/german/german-tips/basic-german-grammar
I am beginning to get this CASES stuff I first encountered in Latin.
Alphabet:
Keyboard Layout:
Learn Grammar in Questions:
Where (Wo, Wohin, Woher)
Who (Wer, Wen, Wem, Wessen)
When (Als, Wenn, Wann)
What (Was)
How (Wie)
Why (Warum-why, Wieso-how so, Weshalb-on behalf of what, Weswegen-because of what)
What for (Wozu)
Sesame Street song on Wieso, Weshalb, etc.:https://www.youtube.com/watch?v=yzsIXqfWy0w
Vocabulary:
Abgemacht = it's a Deal (settled)
Beförderung = promotion
Gemüse = vegetables
gestern = yesterday
langsam = slowdown
natürlich = of course
Tut Mir leid = I'm sorry
Unbedingt = absolutely