just like many of us I also enjoy creating things without much thinking applied to it. some enjoy writing jokes using 140 characters, playing video games or sketching strangers in the tube.
for me it has been taking a paintbrush (or any other 'artsy' medium really) in my hands and making artwork that just comes out naturally without too much judgment or pressure applied to myself.
some things my mum proudly hangs on her walls, some artwork just lays underneath my bed and some artwork doesn't end up even there.
here is some easy made abstract no brainer brush stroke artwork I have created and applied to multiple use. lots of great and successful feedback.