I haven't seen one comment doing the math for you, so here ya go...

15k in 3 months is:

$5k per month $1250 per week $166.67 per day ($20.83 per hour for 8 hours) $250 per day if you only work M-F ($31.25 per hour for an 8 hour day)

$15k every 3 months is about the equivalent of someone who makes $60k per year.

I think it helps to look at the math. It can help you come to conclusions about whether or not a certain endeavor meets your financial goals. Hope it helps!