Generally speaking, learning calligraphy at home only requires copybooks, brushes, ink and paper.
The copybook is based on your favorite aesthetics;
Brush, when beginners, you can use double handles to brush both middle and large letters;
Ink, just use bottled ink;
Paper, just use the same type of selvage paper
Of course, if you want to pay attention to it, Four Treasures of the Study is a university. It is not too late to dabble in calligraphy until you have achieved something.
Ou Yangxun's "Jiuchenggong Liquan Ming" Forbidden City Collection Edition