@Schlitz *******
Read Tod Daniel's answers carefully. He's the one that gave you good advice. You still have plenty of time. Apply for your visa at least, and depending on how long it will take to get it, consider applying for your family there as well.
Yes, losing 400$ is not fun, but it's just a stupid mistake, should not make you think that you're blacklisted forever. You are not, They will welcome your application as long as you meet the requirements.
The travel information part of the form is not that relevant. Just make something up, or say the truth. Give an address for the first month, even without a booking, and you'll be fine.