Depends on what direction you would like to take your skills in, so knowing your interest would be helpful, (frontend, backend, networking, etc.)

My personal projects are generally motivated by lazyness, but in the beginning they would take up more time than doing the process manually; however, this tradeoff were justified by the learning experience, of course.

I would focus on automating repetitive or cloud dependent tasks such as file conversion, organization, or augmentation. This will give you an opportunity to learn more about different libraries, Python syntax, and working with paths agnostically.

Alternatively, you could dive into networking, but this will require knowledge/learning about the OSI model, network architecture, and packet captures.