Become utterly, absolutely, unshakably focused on *accomplishing* your dream. Don't just dream it - DO IT.
NEVER stop working towards it.
Let nothing and no one distract you from making every effort in your life lead to the accomplishment of your dream.
Do not fall to the temptation to wait a bit until "things"/life relent a bit. That is the beginning of the death of accomplishing your dream.
Insist that everything else that is not a part of you accomplishing this goal is nothing more than a temporary, passing moment.