Don't buy a $250,000 house,
Don't eat out every night,
Don't run up your credit cards with reckless spending...not using credit cards at all is even better,
Figure out the difference between "needs" and "wants"....eliminate the "wants".
Stay out of financial trouble by avoiding it in the first place...don't spend irresponsibly...learn how to budget and stick to it.
You'd be surprised how quickly $30K becomes available.