Everyday is so unexpected, we'll never know what will happen, good or bad, as long as we are existing we have to make the most of it. Be happy as we can, we only have one chance to live this life God gave, so better use it for good and make memory out of it.
Someday everything will make perfect sense. For now laugh at the confusion, smile through the tears, and keep reminding yourself that everything happens for a reason. Enjoy the little things in life, for one day you'll look back and realize they were big things.