Not an external resource but I've identified that there are thought tools I continually apply in my own thinking to gain new perspective. I started writing them down and organizing them which has immediately benefited me and maybe one day I'll have distilled them clearly enough to share with others. Kind of like a toolbox for the mind.
Anyway, my advice is write down your own thoughts and discoveries. You'd be surprised how much content there is when you start collecting it all in one place and it will help you be more critical of your inner workings
Anyway, my advice is write down your own thoughts and discoveries. You'd be surprised how much content there is when you start collecting it all in one place and it will help you be more critical of your inner workings