Complex sentence: However, in 1925, her teacher Clarence White died in Mexico, Simon was in a huge sorrow and finally she decided to pursue advanced studies in film, so in 1926 she went to Berlin and became a student in Technische Hochschule for learning film-taking.
Split into simpler sentences: However, in 1925, her teacher Clarence White died in Mexico, which left a sorrowing Simon. This led to her finally deciding to pursue advanced studies in film, so in 1926 she went to Berlin and became a student in Technische Hochschule to film-taking.