The state of mind to be successful is definitely number one.
The most difficult part of hunting a new big game species is finding a hunt location and the best way to scout locations is from an airplane. It is cheaper to use maps, Google Earth, internet searches, calling contacts, etc. but nothing is as fruitful as actually seeing the country.
Once you have a location you need access, motorized to get you close, two or 4 wheel ATV or animals to get you there.
If you don't have good equipment and stay in during bad weather then that is another thing.
Quality optics greatly increases your success be it binoculars or scope.
