When I had 250 TT, I was in California, as a Brit, so no work permit. I had about 5 different jobs, pool cleaner, chauffeur etc. Did that for a year, and spent all on building time. through chauffeuring , I probably got a few hours just by flying clients. You need to be creative, the states is an easy place to exist with cash in hand jobs, and also aim fora rich girlfriend to, keeps you fed!