Trey Parker and Matt Stone’s rise to the top didn’t happen overnight. When the duo first moved to Los Angeles back in the ‘90s, they spent five years chasing their dreams of being in the entertainment business. At one point, Stone was sleeping on his dirty laundry because he couldn’t afford a mattress. Their persistence paid off in the end, but things weren’t looking good for the future Emmy, Tony, and Grammy winners for a while. That’s why when…