To make the next steps much easier I opened a new project and create a whole new worm with the same design but did one major change. I created a skeleton to my worm.
So, from now on I can move the worm around, but don’t have to draw it every time.
Now I can spend more time to improve my animation style and can tell the story even without my less drawing skills.
Also I can save this worm in the library and can use it, even in other scenes.