Sell your house. You can use the money for promotion and covering shortfalls when touring, and your going to be living in your tour van anyway. Things like Easter and Christmas stop being holidays,they become times when people have a lot of free time and are more likely to come to your show.
Make as many friends as possible - bands, reviewers, journos, label guys, and hope some are friendly enough to you to promote you, sign you or like. Send your cd to as many review sites and magazines as possible. Keep it in your sig at all times, promote your bands at all times. Constantly shove the product down people's throats and hope.
In 10 years time, you might have got to where In Flames are today provided you have songwriting ability by the bucketload.
Might.