Hello dear

Draw little objects, stupid objects that you could make with wood, paper, cardboard and material you can find around. Look for trash in your house so you can destroy it to make a new product. Since this is NOT designing, is just prototyping, when you find something that couldn't be done with the pieces that exist and you think you need a certain piece to solve the problem, then you would be thinking in design terms.

Start with whatever you want: a chair, a lamp, a garden table, etc.

Buy a couple of books of industrial design. From material books to portfolio.

Download SketchUp so you can start to mess around with 3D models. If you're a graphic designer probably you know Photoshop and Illustrator, but I think you don't know 3D modeling.

Hope it helps.

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