Worries are unavoidable especially during trying times. I think that's common, a normal feeling of us human. Problems are experienced by everyone. No one is exempted. Rich or poor, pretty or ugly, socialites or ordinary people they all undergo trials in life.
I myself loses faith sometimes when in difficult siituation. But as it keeps on coming back to me I realized that I shouldn't feel deppress about it because it has been part of my life already. Instead of thinking about the the problem, focus on the solution. Smile. Be happy. Be grateful. Think of the people who are your inspiration. Think of the goals that you want to reach.