Never give up. It's like breathing - once you quit, your flame dies letting total darkness extinguish every last gasp of hope. You can't do that. You must continue taking in even the shallowest of breaths, continue putting forth even the smallest of efforts to sustain your dreams. Don't ever, ever, ever give up.
Inside of all of us there is the need and the desire to be heard, to have our innermost thoughts, feelings and desires expressed for others to hear, to see and to understand. We all want to matter to someone, to leave a mark. Writers just take those thoughts, feelings and desires and express them in such a way that the reader not only reads them but feels them as well.
Miki-san... do you truly want that person's dream to come true? Or is it that you want to be that person's savior for making that dream come true? If you're going to fulfill someone else's dream, that's the time when it's most important to be sure you know your own wish. The two might seem the same, but they're entirely different.