There are now a large variety of massive open online courses ("MOOCs"). These are free, anyone can join them, have sometimes thousands of people in them, and are very engaging and fun. But, for the time being, they do not offer college credit. You can take these classes for several reasons:
These are the most popular MOOCs:
There are more and more organizations and universities creating these courses. You can either do a search online for "MOOC and [the topic that you are interested in]" or just browse the link below, which is a list of MOOCs.
Congratulations!! Now that you are a high school graduate, you may be qualified to obtain low interest student loans, grants, or other kinds of funding for college or job training. You will have a few different choices to make, each with a slightly different road. Please explore the choices here, to see what must be done to accomplish it.
School can be expensive, but there may be help for you. Explore the resources listed here to see if you may qualify for aid.