Who says you need to express them? Sometimes you know how you feel but you can't write them down. You can't put feelings on paper -- at least not 100% of it.
I'm not going to go into my extremely religious/Christian rant, so I'll take a different route. Everyone needs someone to listen. For some, it may be their parents. For others, it may be friends. For people like me who are unwilling to share, we do it with God. The truth is, no matter how much you deny it, you want someone to love you. To appreciate who you are. To accept you as you are. To listen. Everyone is this way. You'll hear people say, "I don't care about love. I don't want love. It's just pain." In truth, it's rejection, guilt, breakups, and everything that goes wrong that is pain. Love itself is what heals it.
As for hope, it comes easily to some and not so much to others. Hope means telling yourself that things could be worse. You can't find a silver lining without having to face the clouds. You can't give up on hope because subconsciously it will always be there, even when you can't see it. Dreams can move mountains and if you have faith, if you keep hoping, if you keep working at it, you can stand strong even when the sky is falling.
...I'm so quoting from a song. Oh well.