Also, if you're looking for an extremely easy way to learn, one with guided lessons and such, take a look at TinkerCAD (its free). Some people scoff at it for being too simple, but it is very effective at teaching basic CAD concepts that you will use no matter what program you end up using. I used it to break the ice with CAD modeling, and it really helped me with usingFreeCAD. As an added bonus it even exports .STL files that are ready for you to print!

https://tinkercad.com