Was there anything Germany could do to win the war?

Hitler's Mistakes During WWII
1. Started too late in the year (1941), by the time they reached Moscow, the coldest winter in years hit and the Werhmact was totally unprepared.

2. Guderian's Panzers were diverted south at the gates to Moscow in 1941.

3. Again in 1942, the Germans made the fatal mistake of splitting Army Group South in two culminating in the debacle at Stalingrad and the failure to reach to Caucasus oil fields.

4. The Soviets were into a mindset of ordering important and troop saving withdrawals. At Stalingrad the Germans lost 25% of their entire operational strength in the Eastern Front, a heavy blow by all accounts but NOT decisive. It would however be the main factor for Germany's not being able to complete the conquest of Russia.

5. The Germans blew another chance during their offensive in the summer of 1943. Against Guderian's opinion that the production of Tiger and Panther tanks should be up to operational standards, Hitler launched the ill fated offensive at Kursk. The results being the destruction of the panzer armies. The fact that the German still had the capability to launch an offensive of this magnitude in 1943 proves that Stalingrad was not a decisive turning point in the war. From then on, it was just a delaying tactical war against the Red Army.

6. On the western front, two mistakes come to mind: stopping his tanks and allowing the BEF to escape to Britain via Dunkirk, and switching from the bombing of airfields and radar stations to London and other cities....the RAF was nearly brought to its knees before that 'miracle.'

7. Hitler made the mistake of diverting resources to multiple designs, rather than picking the best and staying with it... example is the multiple tank designs.

Of course the race to make the first operational nuke would've made all other 'what ifs' meaningless. If Hitler devoted the national resources in developing the a-bomb in 1939, the end would've been much different.