When I was very young, 4-5, I began to stutter. I remember (now 76 female) being good to ‘modulate my voice’ at that young age. I must have been an embarrassment to my parents. I finally did overcome my stuttering at the age of 70! Psychotherapy to deal with my abusive childhood was my release to fluency. I bet I was the youngest child, at 4-5, to know the definition of ’modulate’ Hang in there. Don't let your father's embarrassment add to your discomfort. We have enough to deal with. There is hope. Speech hints on this forum from your fellow stutterers can help. Sue