How to cope when stuttering is “new”?

How to cope when stuttering is “new”? I’ve been off work for 2 months (call centre/customer service) due to a breakdown which has since left me with a bad stammer, particularly when on the phone. I’ve definitely overcome the breakdown and am doing well mentally (I hope!). I’ve just come back to work and my manager has been great, letting me ease back into calls gradually line by line. Customers have been so understanding. But I find after the work day, I’m so tired. My mouth hurts, and im still trying to understand that I almost have this new identity. I’m finding some people glaze over when I stammer, or give me the sympathetic (but kind) look to say “you can do it!” which makes me feel like an idiot. I feel like I’m not interesting anymore, no one really listens to what I have to say as my stammer can be so distracting to them. It’s making me feel like the words I say has no meaning? Now on a “good day” I still have this impression no one really wants to listen. It’s hard to adjust and just wondered how I can properly deal with it?