The amount that you can receive from a settlement depends on a number of factors. For instance, if you are unable to go to work after your injuries, you may be entitled to lost wages and lost future earnings. Those amounts will be based on what you make now and what you could have made in the future based on a number of variables such as your chances of getting a promotion or how many years you would have worked.
You may also be entitled to medical bills incurred because you were hurt in an amusement park. The amount that you are entitled to could very well be in the hundreds of thousands of dollars or millions of dollars depending on what you needed to get better. Those who have insurance may also have many of their costs covered or be charged less for services simply because they have insurance.
It is also possible that you will be given punitive damages on top of your actual damages. In theory, there is no limit to what a jury may award, but a judge may reduce that amount depending on relevant factors in your case. All told, you could receive a few thousand dollars if your injuries and other costs are minor or millions of dollars if the injury alters your way of life significantly.