One sentence's meaning
Paragraphy here
Han’s Christian Andersen, born into a poor family, grew up constantly mocked by others because of his tall, but awkward, body structure.Throughout this career he faced many challenges which lead to his rejected from the theater just as the ugly duckling in his fairytale was rejected from the group of ducks (presumed to be his own family) due to his appearance.He grew up in poverty, having parents who were not very well educated. Hans Christian Andersen did not have an adult figure to push him in school; therefore his educational schooling was curtailed. He faced much mockery because of his gawky, awkward appearance and had to survive on his own while fighting to ignore the rejection he received so many times,
The sentence:Hans Christian Andersen did not have an adult figure to push him in school;therefore....
Does it mean Hans C Andersen was so short that the school did not allow him to get in? really?

Question

One sentence's meaning
Paragraphy here
Han’s Christian Andersen, born into a poor family, grew up constantly mocked by others because of his tall, but awkward, body structure.Throughout this career he faced many challenges which lead to his rejected from the theater just as the ugly duckling in his fairytale was rejected from the group of ducks (presumed to be his own family) due to his appearance.He grew up in poverty, having parents who were not very well educated. Hans Christian Andersen did not have an adult figure to push him in school; therefore his educational schooling was curtailed. He faced much mockery because of his gawky, awkward appearance and had to survive on his own while fighting to ignore the rejection he received so many times, 
The sentence:Hans Christian Andersen did not have an adult figure to push him in school;therefore....
Does it mean Hans C Andersen was so short that the school did not allow him to get in? really?

Answer

No.  His parents were not very well educated and therefore they did not understand the importance of his education.  They did not insist that he went to school to get an education.
Push = insist or force.

Answer

No, it means he did not have an adult in his life who encouraged him in school. His parents were uneducated and did not serve a role models for him in that manner. Perhaps they did not see the value in education, or they needed him to quit school in order to work and help support the family.

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