In life, we can't predict what future lies ahead. It's like a roller-coaster, sometimes it goes up and suddenly go down. But what matters most is we learn something a long the way. 
Life will never be perfect as what we want to be. Yes, it will never be. In every road we take, we can encounter different types of trials. Just like in a road, sometimes it's smooth, rocky and rough. But the important thing is how we make that trial affect our lives. We should always be positive. We should take that as a blessing in disguise. We should find for the brighter reason why is that happening. You know why? because God will never attest you if you can't overcome that. Have a nice day!