When going through trials and tribulations, the first instinct is usally to dwell on the negative, the things you don't have or the things you want. However, being content or happy is actually a mindset that can only be determined by you. Only you and you alone can decide to change your world. You can't do it alone or in your own strength, that's where God comes in. Acknowledge God in all things, but the first step in changing things in your own life that you'd like to change is deciding to do it.
It's a little known fact that surrounding yourself with positive things can improve one's outlook on life. Dwelling on what you do have and the blessings you have received in life instead of dwelling on the negative and things you don't have will actually help keep you happy and positive throughout the day.
Try this experiment over the next few weeks. As the holidays approach, surround yourself with positive influences: Listen to Christian,Christmas or classical music throughout your day. Choose reading material that focuses on God and the blessings He gives us. Choose to be around positive peaple.