Home Depot offers free workshops for people of all ages who want to learn new things to build. All you have to do is go to the official site and register for an upcoming class that piques your interest. A workshop will only be available on a certain day and time. New classes will be scheduled every few days.
As mentioned before, there are workshops for people of all ages. The different categories are: Do-It-Yourself Workshops, Do-It-Herself, and Kids Workshops. You will be able to learn things as simple as painting walls to something as big as installing your own toilet.
Be sure to sign up for a class you want quick while you can!