The Learning Page: Accessible through the Help icon on the top left corner of the screen inside your Fusion 360 workspace, or simply through this link, the Fusion 360 Learning/Help page explains all features of the software in detail, with video demonstrations. We recommend watching the videos for the Sketch and Model sections, and keeping the rest of the guide bookmarked for future reference.
Fusion 360 Youtube Channel: Don't forget to check out Autodesk's official channel for all things Fusion 360, complete with quick tips, past webinars, and troubleshooting demos for those tricky designs.
We recommend Autodesk's Making The Future tutorial as your first stop for learning about Fusion 360. The first thing you'll want to do is download the file below (ShadeProfile). Save it to your hard drive, then head over to the video tutorial playlist available on Youtube.
3) Mimic a Design
To get a better idea of the modeling capabilities of Fusion360, it's often helpful to see what people have made, as well as the thought process that goes into how they made it, and what tools they used.
Here are a few example modeling exercises that you can follow along with:
4) Replicate a physical object
Once you've become familiar with all the functions of the software, the next step in your 3D modeling journey is to learn to plan out more complicated designs without help from a tutorial. The best way to do this is to look for objects around your work or home space that look like something you could 3D Model.
Fusion 360 is capable of modeling functional mechanical objects. Try modeling a hand tool like a screwdriver; office supplies like a tape dispenser or paper clip; a phone case; board game pieces; or a mounting bracket for a digital camera.
Take some measurements of the object, and draft it out on paper if you think that might help. Then see how far you can get trying to replicate it. Remember, this is just practice, so it may take some patience, and it doesn't have to be perfect. If the object doesn't work out, try something easier and come back to it when you've gotten some experience with simpler objects.
Next, try some more challenging objects that require more complex mechanical interactions. Things like...
5) Create an original design
Look for a problem you want to solve, an idea you want to express, or an item that needs to be fixed with a replacement part.
Map it out in your mind, or draft it on some graph paper if you need to visualize it first.
Try out a few designs in Fusion 360, print them out, and see if they work or if you need to go back to the drawing board. Don't be afraid to make mistakes! Iteration and improvement are important parts of the design process.