They’re too broke to have a blast. Nearly 60% of Americans say they don’t have enough money to make fun plans this summer — as gas and restaurant prices soar, according to a new poll. Cash-strapped folks are fueling a “fun drought” with more that 57% of people surveyed saying “cost and budget” are what’s keeping them from having a good time, according to a survey of more than 5,000 US residents. Overall, the state-by-state survey found 48% of the nation feels like they lack fun in their lives —