What are your thoughts on elongating the start of the sentence while talking to reduce blocks??

What are your thoughts on elongating the start of the sentence while talking to reduce blocks?? I have been trying to follow this method,but i seem to miserably fail when trying to talk to other person. I can practice it fluently even on videos but I simply cannot implement this technique with even someone I know. It is ironic that i feel ashamed to elongate my words to be fluent but I dont fell any shame even if i stutter. If anybody has tried or has some tips on how to elongate the words and speak with others , please any tips would be appreciated