How do i throw faster?

ok how do i throw faster, like scericoully im too poor to but thoes pitching books so i just need to do it the old fashion way, throwing a ball. does anyone know any work outs to strenghting the muscles i need so i can throw faster.

What equipment do you own, have access to and when?

the only equiptment i got is a back stop that i throw at from 65 ft, a pitchers mound i made, catchers glove i nailed to a board to mark the strike zone. and a glove and balls.

people try to complicate how to do this,
you simple throw, and throw some more, do some long toss. and run
long toss at 90ft and get it on a line,
and when i say throw alot i mean throw the fastball not curves