Nicholas was not the natural autocrat his father was and lacked the political understanding of his grandfather.
Nicholas II was not the same imposing figure that Alexander III was.
Small, shy and unassertive, he was given the nickname of "girlie" by his dad.
Nicholas was dominated first by his mother and then by his wife Tsarina Alexandra and was far more comfortable as a family man than as the autocrat of an enormous empire.
Even Nicholas II himself did not have faith that he was cut out to rule - "What is going to happen to me and all of Russia? I am not prepared to be a Tsar. I never wanted to become one. I know nothing of the business of ruling."
Nicholas was not the idiot his father thought he was, he had an excellent memory and spoke several languages but he was not a "doer" and lacked many of the skills required to be a Tsar.
Perhaps worried about his own weakness, he was determined to be a strong ruler like his father and make no concessions and maintain autocracy.
His tutor Pobedonostsev, who also taught Alexander III, was key in instilling these ideas in him.
There was a lot of resentment towards the Tsarist system when Nicholas came to power due to failings in dealing with the 1891-92 famine and the repression carried out by Alexander III.