"When you feel most defeated, just start to say out loud (or write down) why there's no solution.
As you're talking, your own bullshit detector will go off, and show you what puzzle piece is wrong in your mental puzzle" - @ShaanVP giving us another mental model ๐
Here's a hack
Step 1 - Film yourself doing something difficult or something you've been dreading
Step 2 - Save it in a folder called 'I can do hard things'
Step 3 - Open that folder whenever you're struggling & remind yourself that you've done it before and you can do it again