Remember that life is a roller coaster ride. If you go really, really low down, take that as a sign that someday- hopefully soon, you will go soaring up to the sky. Also remember that if Hashem gives you something hard to deal with, that means that He KNOWS you can deal with it- with your head held up high, AND smile!
As was recommended already, check out divreichizzuk.com. That website is AMAZING!!!!! I can’t even tell you how many sleepless nights ive spent surfing that site, crying like a baby. Whoever started that site is gonna get some real good stuff after 120.
If you’re sad cuz you’ve made lots of mistakes, then i would recommend watching the shiur “everyone deserves a second chance” by Rabbi Bentzion Klatzko. It’s available on TorahAnytime.
Most importantly, daven. Know that Hashem is waiting for you to call to Him. He cares about what you’re going through and He is hoping that you will succeed in surviving it.
Also, read this thread: http://www.theyeshivaworld.com/coffeeroom/topic/inspiring-letter
Keep your head up and smile cuz Hashem loves you!
toy,
taom