The world is often an unpleasant place, LostLamb, but remember the words that Jesus spoke in John 16:33,
"These things I have spoken to you, that in Me you may have peace. In the world you will[a] have tribulation; but be of good cheer, I have overcome the world.â€
Jesus' word should be enough for us, but we often get discouraged, so we need to hear his word over and over again! But that's what's so wonderful about Jesus. He clearly understood all of our weaknesses and even suffered under all of them. So whenever you feel discouraged, just remember that Jesus went through all of our sufferings so that we can have a better life, for He also said in John 10:10,
"The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full."
So don't fret over doubt and worry. Keep pushing on and trust Jesus to keep your life in His hands and hold you up. Read the good book daily and pray about the path that God wants you to take. I hope that these verses helped, and I have prayed for you.