Dictionary.com
Thesaurus.com

from rags to riches

Idioms  
  1. From being poor to being wealthy, especially through one's own efforts. For example, The invention catapulted the scientist from rags to riches. Horatio Alger (1834–1899) popularized this theme in some 130 best-selling novels, in which the hero, through hard work and thrift, pulled himself out of poverty to wealth and happiness.