Albert Speer gives many personal accounts of Hitler in his book "Inside the Third Reich". Hitler hated bureaucracy and valued his free time to think without distraction. Speer quotes Hitler here:

In the first few weeks every petty matter was brought to me for decision. Every day I found heaps of files on my desk, and however much I worked there were always as many again. Finally, I put an end to that nonsense. If I had gone on that way, I would never have accomplished anything, simply because that stuff left me no time for thinking. When I refused to see the files they told me that important decisions would be held up. But I decided that I had to clear the decks so I could give my mind to the important things. That way I governed the course of development instead of being governed by the officials.

Speer describes later how when Hitler needed to write an important speech, he would retire to his mountain residence at Obersalzberg. Hitler openly talked about how he needed the "inner calm and assurance" the mountain provided him for his decision making process. He would spend weeks working on a speech and as the deadline drew nearer his adjutants kept urging him to begin dictation. He would begin refusing all visitors.

But Hitler postponed the task from week to week, then from day to day, and would reluctantly set to work on it only under extreme time pressure. By then it was usually too late to finish all the speeches, and during the Rally, Hitler usually had to stay up nights to make up for the time he had squandered at Obersalzberg.

Speer goes on to say he believed Hitler needed the pressure and describes his "bohemian manner of the artist" made him despise discipline and working regularly. He describes short working sessions, long dinners, late evenings consisting of watching movies (nightly in the early days of the war, much to the displeasure of his generals who couldn't leave), rising late, lax scheduling and ignoring problems for weeks at a time and then suddenly going into a flurry for a couple of days to solve them at the last minute. Hitler's adjutants would sometimes beg Speer to not show Hitler architecture plans in a desperate bid to get him to do some work that day.

Later in the war, this all changed. As the tide turned on the Eastern front, Hitler grew more and more isolated. The dinner parties ended and his work ethic changed. He became more disciplined and "regularly attended to an enormous daily mass of work." The stress led him to micromanage a lot of tasks he had once left to others. Sometimes he would retire to Obersalzberg to try to clear his head and it was noted that his decisions seemed to be clearer after a period in the mountains.

How much of his time was spent with Eva Braun and his dog, Blondi? I can't speak much to Braun (Hitler's relationship with Braun is a huge subject matter) but Speer says Hitler's dog was more important to him than his closest associates. Hitler would sometimes take a meal alone with Blondi. He liked daily walks with it at Obersalzberg, played fetch, trained it to balance on a board 6ft off the ground and preferred to personally feed it. Blondi would often be in the room during conferences.