Originally Answered: Adolf Hitler, HELP! Repot & i need a good grade?
Wow Nicole, that's no small order to fill!
Even though your list is concise, adequately answering them in a like manner is nearly impossible. However, it may be possible to highlight a few points about each and then give you some resources for finding out more detailed, comprehensive information that will fit into your research and report.
Failures: Almost too many to list, but beginning earlier in his life, he was not an avid student but had interests in Art and Architecture, but failed to get additional, higher education in any subject and even twice applying to and being rejected in Vienna for art school; his failed Beer Hall Putsch in 1923 (an attempt to stage a coupe and takeover) landed him in prison; though he met with many early successes in WWII, his invasion of Russia (Operation Barbarossa; 22 Jun 1941) opened up a second-front in the East and his handling of troops, resources, etc. resulted in massive casualties and losses, especially in Stalingrad.
Lasting contributions: Generally contributions have a connotation of being "positive" and I can think of none of Hitler's actions that left a positive lasting contribution, only negative. Many of the things he was able to take credit for (Volkswagen, Autobahn etc.) were actually programs and policies in place before he became Chancellor in January 1933.
Appearance: Really depended on what time in his life and what activity. For the most part, during his Vienna days, he led a rather meek, bohemian existence. His dark hair, short stature and other physical features and traits are ironically almost nothing like the "Aryan" ones he admired and promoted.
Motivation or beliefs: Depends on what topic, but largely, Hitler was very upset at the end of WWI feeling like Prussia (Germany) had been betrayed and he would largely deflect the blame and attention of this to justify a visceral stance towards Jews, Bolsheviks, political dissidents and others.
Biographical: see references, biography.
Character traits: also see references and biography, but in large part, Hitler was an actor in that he played mostly whatever part he needed to or felt appropriate in a given situation so it is honestly difficult to nail down true traits, but through his speeches, writings, and other research you will likely find that he was generally shy and not outspoken at first, but as he "grew up" in the anti-Semitic and political arenas he studied and received help in his appearance and delivery; he was generally paranoid, trusted few, but he was very loyal and generous to those whom he felt comradeship.
Accomplishments: see contributions mostly; but, it is fair to report that he accomplished many things, though it seems always with an evil or ulterior motive, in politics and initially in combat operations planning. (See Austria Anschluss, 1938 Munich Conference for example)
People associated with: Hitler seemed to have few friends growing up. "Associated with" is very broad, but a good start would be to look at who/what had influences on him such as Julius Streicher, Dr. Wilhelm Frick, Rudolph Hoess, Friedrich Weber, and others.
Some good resources or references:
Adolf Hitler biography
Thirty Days to Power by Henry Ashby Turner
Hitler: A Biography by Ian Kershaw
Hitler's Willing Executioners by Daniel Goldhagen
Good luck, happy research and great reporting to you!