The best attitude you can possibly aspire to express year-round is one of gratitude and appreciation. Being truly grateful for what is already present in your life will automatically and effortlessly attract more good into your life.
Make a conscious decision to appreciate and acknowledge all that you have already been blessed with. These emotions are of the highest vibrational frequency, and through the Law of Attraction they will attract even more to be thankful for.
Try to be grateful for even the difficult and challenging situations that arise in your life.