OK, kiddo! So, the Affordable Care Act is a set of rules made by the government to help people have better access to healthcare. One of the things it does is require everyone to have health insurance, which means you have to pay some money every month to have it.
Now, some people might not be able to afford health insurance, so the government created some special ways to help them. There is something called a tax credit, which is like a discount on your taxes, that helps people pay for their health insurance.
But there are also some tax penalties for people who don't have health insurance. This means that if you don't have health insurance when you're supposed to, you might have to pay extra taxes or fees.
It's all a bit confusing, but the main idea is that the Affordable Care Act tries to make healthcare affordable for everyone, even if they don't have a lot of money.