Life is dynamic. It doesn't follow plans. When one door closes, another opens (you just have to put yourself out there and keep both eyes open to see it). Don't let depression fester. It sucks, but it always gets better (some cases may take longer than other cases). If it's serious (affecting day-to-day activities), seek help. Every time I didn't get a job I thought I wanted, something better always came along. You have to keep your eyes open though, and keep going forward.