Get, set up a mantelpiece, and place upon that mantel-thingy only those entities you have created. Drawings, origami, assignments, animations, ect ect ect
Let the mantel-thingy separate you from the things you buy and the things you create. (Too much stuff, and too many distractions can hinder, encase, repress the inner you.) In other words, produce that which can be considered evidence of an inner you.
To start to create, simply grab random bits of unrelated things and ideas in your head and play with them, twist and transform them, constantly adding and removing constraints to them as you go. At some point you will have forgotten that you were trying to start to create. At any point you can examine what your mind has derived and pursue it further, or have another go, or do whatever else takes your interest.
So put only your stuff on your mantel piece, and add new stuff often. And cause no grief.
PS. The Internet can make a good mantelwall.
PSS. We are at our most improvised and adaptable when we are under constraints.
PSSS. Show off your mantel-thingys.