If you are not working full-time, you probably aren't going to be able to save $7000, ever.
Unless you are a good and fast writer and can turn out Hub pages, blog pages, and websites FAST. And you can then learn how to make money with them.
Look up in Google:
+"Keyword Academy" +Courtney
Then look for the "100 Hubs in 30 Days" articles.
There are also some related "challenges" here, also.
One final tip, which most women say "eeewww" to: If you are good looking, you have an option which most men don't, to make extra money.