Nah man. I use to not even be able to say a word. I told myself I had a "severe stutter". Go and put yourself out there, don't stay in your comfort zone. There are people, living proof that it is possible to overcome this. Change your mentality and constantly challenge yourself. Even if you do have a severe stutter, it is definitely possible to be confident. Go workout for 2 years and tell me your confidence hasn't increased.