Every time you say you ‘can’t’ do something you’ll tend to believe yourself… Your subconscious will interpret it as a definite CAN NOT BE DONE, which is incredibly debilitating as it will stop you from even trying..
Think just how much more powerful it is when you switch that around to ‘how can I?’ instead. When you think that your mind immediately goes to work on looking for solutions, ideas, things to try. Has anyone else ever done it? What did they do? How could I get started? etc.
I know which I’d prefer. How about you?