My dear sister, we all face troubles in our lives.. and you're definitely right about the fighting part, we should keep fighting.. but honey!! NEVER TAKE LIFE SERIOUSLY, NOBODY GETS OUT ALIVE ANYWAY! thta's what I learnt from all my experiences..
but it's good to write down your feelings when you're sad, it's kind of relaxing when you write it all out..
there's nothing wrong with expressing ourselves, so don't be shy that you were sad once.. we all were. Thank you, for sharing us your lovely words, dear
good luck, and take care of yourself