The one thing that determines your happiness, is how you respond to difficulty. Your response to moments of trouble, frustration, or discomfort determines if you move forward in anger or in joy. This does not mean you must respond joyfully to everything. Life might bring legitimate moments of hardship, pain, or anger. You’re allowed to experience any negative feeling that comes your way. But if you want your future to include happiness, then your response to negative feelings must be neutral or positive. The more you practice responding positively, the easier it is to do the next time. That practice enables you to face toward happiness, no matter what comes at you.