“Do one thing which scares you everyday.” No, please don’t.
Do something which scares you only if you genuinely want to do it.
If you are fearful of public speaking but still feel excited to try it out, then go ahead!
But if you are scared of public speaking and you dread, fuss over it, hate it with no hint of excitement or joy anywhere, then postpone it if you can.
You won’t gain or learn much forcing yourself to do something you have genuinely no desire to do.
Don't do something that scares you - just for the sake of doing it