Do it again or move on?

Do it again or move on? So two (2) days ago I had a conversation with a friend of mine and asked him some questions. And I said I found a technique for my stuttering. I used that technique but it didn’t work whilst I told him it would work. I feel like total shit now still 2 days later and want to do the questions again one more time so that I can prove to him I can speak without a stutter. It now feels like I gave him the wrong impression. Do I let it go or ask him again?