Making a dream come true is a long, laborious process. It requires incredible patience and resilience. Choose a dream for which the work is something you can see yourself getting up for every morning, because to make a dream come true you'll have to be willing to work harder and more strategically and with more focus, discipline, and dedication than anyone else.
Life is too short to fear rejection. The future isn't promised, so worrying about it won't do you any good. There's nothing like the feeling of being courageous enough to go after what you want. It's a rewarding feeling to at least try something even if the situation doesn't play out as you expected.
While you might not be aware of it, we all have at least a second to choose how we want to respond to a trigger -- and most times more than a second. If you choose to take the breath and tune in, you have a chance of responding from your loving adult self rather reacting from your ego wounded self. You have the chance to move into compassion for yourself.