Question

why was albert miserable in Munich

Answer 1

Einstein's life was miserable in Munichbecause he neither had a good time in school nor back at his lodgings. His bad days were increasing in number because he could not shirk school and he felt stifled in that place.

Answer 2

Einstein's life has been as miserable in the Munich as he neither had a good time in school nor the back at his lodgings.

Einstein's lodgings were also the dismal place as father could only afford only the single room as he was poorest quarters in the Munich for Einstein.