"spit it out"

"spit it out" i started stuttering a year ago, i went to few speech therapists and nothing worked. my parents think it's stupid and that my stutter will go but it's getting worser everytime. at the beginning it was only few small stutter but now it's really horrible. i told them a loooot of time to be patient with me because it's difficult, i really don't accept it.. it happend few minutes ago. i was talking to my brother while lunch, my dad was starring at us so i got anxious. i continued to talk but i was blocked, i wasn't able to get out the word i wanted to say, it really hurts and my dad just, he yelled at me, telling me to "spit it out". i wish i was able to spit it out dad, i wish i was able.