Usually when I am trying to meditate/cast spells, my emotions get in the way and the spells get all twisted and don't work how I want them too. And I can't meditate well. How should I block my emotions?
Why not try and let the emotions come to you? Let all of your thoughts come to you, turn them into a positive symbol, then let them float away and not let them bother you again. Not my idea but it should help you if your having trouble blocking emotions or troubling thoughts.