I have upcoming Pak Army ISSB and I have mild stutter

I have upcoming Pak Army ISSB and I have mild stutter I have never seen Pak Army officer who stammers and I had my ISSB coming in 2 weeks. They referred me medically but give me fitness because of my mild stammer. Is there anyway that I don't stutter in front of them. I only stutter on K, Q words but I don't want to risk my chances. Please pray for me and give me some guidance and it's my childhood dream to join Pak Army