While it's great to be optimistic and have a lot of faith in God, how many of you are willing to accept that you might have to endure a lifetime of pain in order to glorify God? For example, there were many black slaves who died violent deaths and never lived to see freedom even though they prayed and prayed and prayed. The only salvation they received was death. However, their deaths weren't in vain but eventually led to the abolishment of slavery.
In other words, what I'm saying is that we're all part of God's plan but you might be given the role of the sacrificed. For some, life on earth will never work out and the only salvation is death.
So if life is rough for you, that is all part of God's plan. Are you willing to accept that role, while someone else gets the role of seemingly success? Of course, God has a job for them as well and they will be judged accordingly.