What changes did julius caesar bring about as a ruler of rome

Julius Caesar did many things to improve the way Rome worked. Caesar brought order and discipline to Rome. He named himself the sole leader of Rome. This caused the Roman Republic to end. There was a huge battle in Rome while he was ruling. According to legend or book he won the battle with almost 1 million soldiers left in his army. He also had a thing with Cleopatra and they united Rome and Egypt together to make a stronger country. He had to wives, one in Rome, one in Egypt. He had a real child that belonged to him from genetics and one that e adopted. After Julius Caesar died his adopted son Octavian AKA Augustus ruled from then.

What was the length to begin with?