Pat yourself on the back- you've learned how to design, sketch, 3D model, and 3D print. The skills you've learned here should get you going on your own work.
Don't procrastinate! Now that the knowledge is still fresh in your mind, it's time to get started on your own projects. Here's how I advise moving forward...
Step 1: Start Small, Start Simple
You've followed along with the project examples in the course. To keep your momentum going, sometimes it's best to continue using the skills on smaller, simpler projects. This 3D Printed Window Box Fan Shelves project by cfishy is a great example of a simple project that will keep your momentum going- it's a quick design, a quick print, and it's useful. Remember that design and 3D printing can offer endless practical solutions to everyday problems.
Step 2: Keep Practicing
Remember how your brain works! It stores information and accesses it when it's needed. It forgets things that aren't accessed often. If you don't practice, you'll forget everything you've learned.
It's a great idea to step up the level of complexity as you work on new projects. These GearBot projects by printeraction are a great example of how the basic skills you've learned here can come together in a fun, complex project.
Step 3: Challenge Yourself
If you keep pushing yourself to try more complex projects, your ideas will improve along with your knowledge. 3D modeling and 3D printing open up a new world of possibilities for makers.