That’s definitely understandable, but all drugs alter your mind in a sense. I didn’t take the drug with the intent of fixing myself or my stutter. I took LSD really just for recreational use, it just so happened I got something out of it. Why wouldn’t “ being happier “ change your stutter? I don’t know about you, but whenever I’m having a bad day my speech is aggravated. I’ll tell you one thing, being a little happy is definitely something that won’t hurt you. One thing that also helps me is to just smile when you talk and be expressive! This is a short life we live my friend, open yourself up to trying something new! ( not talking about doing drugs)