When you first start using TikTok, it can be a bit overwhelming with all the features, but start by exploring the app's main page, which is the "For You" page, it's where you'll see videos from popular creators and trending challenges. From there, you can start searching for topics that interest you and follow users whose content you enjoy, this way you'll see their videos on your "Following" page. To create your own videos, start with the basics, like using the camera and editing features, and experiment with different effects and music to make your videos more engaging, then you can post and share them with the community, and don't forget to interact with others by liking and commenting on their videos.
