Stimulus Bill is to stimulate what and when?

We are now hearing that the check people are going to get, could get to them as late as June or even July depending on how they get their tax return and their last two numbers of their social security number and when they get their taxes filed. It will be summer by the time most get it and by the time they spend it, we won't see any stimulation on the economy for a couple months later. The economic jump may not happen till as late as November, after the election. And then it could be argued that if the democrats were to win the election, the economic jump could be because they won the election, not the stimulus package. I fear that the stimulus package will stimulate nothing and cause more of an economic problem, as where is the money for it coming from? Not taxes, as that money has already been spent on the war and the next budget.