When i face a block i have serious pressure on my Chest and even after stoping and breathing it doesn't work and mainly the block happens when my Brain pre plans sentences for example my mother said to me go by 4 eggs from market and during my way there my brain thinks about what izm going to say to the Shopkeeper and because of that i can,t even say 4 so that is why i some instead of 4 i say or and the shopkeeper understands it . So you tell me what i should do to stop my brain from pre planning