The best advice is the "bible advice". Always look at your problem and examine it through scripture. There's so many examples, you'll be surprise who's been through what you've been through.
Today I encourage everyone to invite the Lord to show you who you truly are. I mean everything from your flaws to your strong points. The more time you spend with yourself, the more strong you will be in those dark lonely hours. Stay firm in the bible, keep reading, worshiping and praising the Lord.