I think the thing that really helped me over the years through easy and tough times was to set aside a certain amount of time each day to pray. It doesn't have to be specific types of prayers. You can just talk to God like you would to a close confidant. I'm a Catholic, so I rely on the Rosary. I've recently expanded into the Latin Rosary, which has been very special once I learned how to pronounce the words (that took some time). Just find a method that works for you, and God will bless you with the time you share with Him.