Generally it has seen that stammering
is contacted with any type of psychological stressors so first try to find out stress
factor and solve it, secondly do some jaw related exercise which relax your mouth muscle apart from this I am giving you some tips so must follow them 1-learn to speak slow 2- avoid arguments 3- don't try new words too much 4 -learn
relaxation techniques to relax your mind
try all these Best wishes.