Play with song structures
You can think of a song as a block of time, which can be broken down into smaller blocks of time. In many types of music, the smaller sections consist of even smaller patterns like the ones you've been making, combined in multiples of four, eight, or 16 bars.
Putting these sections together is called arranging; it's how you get from small patterns to a full song.
The combination of a song's sections is the song's structure or form. Some types of forms are used over and over in many types of music.